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Daily Vits

NOW
4.7
★ ★ ★ ★ ★
(8595 ratings)
Iodine 150 mcg
Copper 1 mg
Manganese 2 mg
Zinc 15 mg
Vitamin A 3500 IU
Iron 9 mg
Vitamin E 30 IU
Product Image
Score80
Good chelated minerals and methylcobalamin make this an economical iron-containing multivitamin. D2, folic acid, and modest magnesium are the main compromises.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Immunity
General Health
Hair Health
Skin Health

Score 80

Good chelated minerals and methylcobalamin make this an economical iron-containing multivitamin. D2, folic acid, and modest magnesium are the main compromises.
How scoring works

Also available as

3 options
1050.00mcg Vitamin A • 250 servings 1050.00mcg Vitamin A • 250 Tablet(s) • 250 servings $23.10 ($0.09 per serving) 3000.00mcg Vitamin A • 120 servings 3000.00mcg Vitamin A • 120 Capsule(s) • 120 servings $15.10 ($0.12 per serving) 3000.00mcg Vitamin A • 30 servings 3000.00mcg Vitamin A • 30 Capsule(s) • 30 servings $5.80 ($0.19 per serving)
$11.00($0.11 per serving)
Pure Formulas
$ 11.30
Vitacost
$ 12.77
Daily Vita
$ 11.00
iHerb
$ 11.62
Walmart
$ 13.15
Amazon
$ 23.10
Report prices

Analysis

Ferrous bisglycinate, zinc bisglycinate, copper bisglycinate, manganese bisglycinate, methylcobalamin, and natural vitamin E are notable form strengths. Iodine is fully represented, and the one-tablet serving is convenient.

Vitamin D uses ergocalciferol rather than D3, folate is folic acid, and magnesium is limited and partly oxide. Lutein and lycopene are present only in token amounts and should not drive the purchase.

The formula provides good everyday value for someone who benefits from 9 mg of iron. Adults who do not need iron may prefer an iron-free multi with D3 and more useful magnesium.

Who is it for
  • Adults who need a moderate iron supplement
  • People seeking chelated trace minerals
  • Value-focused one-tablet users
Best for
  • General daily coverage
  • Moderate iron intake
  • Chelated zinc, copper, and manganese

Pros

  • Uses several bisglycinate minerals
  • Includes methylcobalamin
  • Provides strong value

Cons

  • Uses vitamin D2
  • Folate is folic acid
  • Magnesium and carotenoids are modest

Warnings

  • The 9 mg iron serving is unnecessary for some adults and should be kept out of children's reach.
  • Iodine may require individualized planning with thyroid disease, thyroid hormone, or antithyroid medicines.
  • Do not stack multiple folic-acid products without accounting for the combined fortified and supplemental intake.

Nutrient quality

79 High impact

Chelated minerals and methylcobalamin support good basic quality for an economical multivitamin. Vitamin D2, folic acid, magnesium oxide, and modest dose depth remain important limitations.

Ingredient transparency

79 High impact

Major nutrient amounts and most forms are clearly disclosed. Daily directions and a complete excipient list are not supplied.

Customer satisfaction

73 High impact

The supplied aggregate satisfaction metric is supported by the available feedback volume. No feedback excerpts or complaint themes are supplied, so specific experience patterns cannot be verified.

Value for money

89 Highest impact

Core nutrient breadth supports favorable serving value. The formula largely avoids costly low-value extras.

Report analysis

Goals

Immunity
Immunity
Impact
Highest effect
A- Goal FitB Strength of SupportB+ CoverageB+ Formula Quality
Magnesium · 75 mgVitamin C · 60 mgZinc · 15 mgVitamin A · 3500 IUVitamin D · 400 IUSelenium · 35 mcg

Vitamin A, vitamin C, vitamin D, vitamin E, zinc, and selenium cover several important immune and barrier pathways. Zinc bisglycinate and selenomethionine are notable form strengths.

Vitamin C and vitamin D are modest, while vitamin D2 and magnesium oxide are less preferred forms. Included iron can help when deficiency is present but is not an immune supplement to use indiscriminately.

Study evidence
Iron Supportive 23 studies
Magnesium Supportive 8 studies
Selenium Mixed 37 studies
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Vitamin E Supportive 21 studies
Zinc Supportive 73 studies
General Health
General Health
Impact
High effect
B+ Goal FitC- Strength of SupportB CoverageA- Formula Quality
Folate · 400 mcgVitamin B12 · 6 mcgVitamin D · 400 IUMagnesium · 75 mgSelenium · 35 mcgZinc · 15 mgVitamin C · 60 mg

A straightforward micronutrient formula provides sensible basic coverage for general health. The familiar vitamin and mineral set can help fill modest dietary gaps without a cluttered ingredient list.

Low vitamin D supplied as D2, folic acid, a very small vitamin B12 amount, and limited mineral depth reduce its usefulness. The simple one-tablet design is convenient but better suited to basic maintenance than robust nutritional support.

Study evidence
Folate Supportive 80 studies
Vitamin D Supportive 115 studies
Hair Health
Hair Health
Impact
High effect
C+ Goal FitB- Strength of SupportC+ CoverageB- Formula Quality
Biotin · 300 mcgVitamin D · 400 IUZinc · 15 mgIron · 9 mgVitamin C · 60 mg

Chelated iron and zinc, biotin, copper, selenium, vitamin D, and vitamin C provide a practical maintenance nutrient base for hair. The single-tablet format clearly discloses the active amounts.

Iron and vitamin D are modest, while biotin is not a targeted high dose. No structural protein or androgen-pathway ingredient is included.

Study evidence
Biotin Supportive 4 studies
Copper Adverse 4 studies
Folate Mixed 15 studies
Iron Disputed 25 studies
Selenium Disputed 7 studies
Vitamin C Mixed 5 studies
Vitamin D Disputed 34 studies
Zinc Supportive 22 studies
Skin Health
Skin Health
Impact
High effect
B- Goal FitC+ Strength of SupportC CoverageB- Formula Quality
Zinc · 15 mgVitamin C · 60 mgCopper · 1 mgSelenium · 35 mcgLycopene · 100 mcgVitamin E · 30 IU

Vitamin C, vitamin E, beta-carotene, zinc, copper, and biotin provide basic skin nutrition. Chelated zinc and copper improve the mineral forms.

The antioxidant amounts are moderate, while lutein and lycopene are only token additions and no structural or hydration active is present. The one-tablet formula is useful for maintenance rather than visible skin-focused change.

Study evidence
Biotin Supportive 10 studies
Copper Supportive 16 studies
Lycopene Supportive 20 studies
Vitamin C Supportive 53 studies
Vitamin E Supportive 38 studies
Zinc Supportive 66 studies
Nail Health
Healthy Nail Growth
Nail Health
Impact
Moderate effect
C- Goal FitC+ Strength of SupportC CoverageC Formula Quality
Biotin · 300 mcg

Biotin, zinc, iron, vitamin C, and B vitamins provide a broad base for normal nail growth. The product offers no direct protein or silicon source for nail-plate structure.

Zinc and iron use favorable chelated forms, but the biotin and iron amounts are modest for targeted use. It works as an economical nutritional foundation rather than a focused brittle-nail formula.

Study evidence
Biotin Supportive 8 studies
Iron Disputed 4 studies
Vitamin C Supportive 1 study
Zinc No effect 1 study
Testosterone Support
Natural Hormone Production
Testosterone Support
Impact
Moderate effect
C- Goal FitC Strength of SupportD+ CoverageC+ Formula Quality
Magnesium · 75 mgZinc · 15 mgVitamin D · 400 IU

Zinc bisglycinate at 15 mg provides useful foundational support for steroidogenesis, while vitamin E adds antioxidant protection. Vitamin D is a low D2 dose and magnesium includes poorly absorbed oxide.

The simple multivitamin lacks an adaptogen, boron, or a free-hormone botanical. General nutrient maintenance is more convincing than targeted testosterone support.

Study evidence
Magnesium Disputed 5 studies
Selenium No effect 16 studies
Vitamin D Supportive 56 studies
Vitamin E Disputed 3 studies
Zinc Disputed 7 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
 3500 IU
Vitamin C (Ascorbic Acid)
 60 mg
Vitamin D (Ergocalciferol)
 400 IU
Vitamin E (D-Alpha-Tocopheryl Succinate)
 30 IU
Thiamine (Thiamine Hydrochloride, Vitamin B1)
 1.5 mg
Riboflavin (Vitamin B2)
 1.7 mg
Niacin (Niacinamide, Vitamin B3)
 20 mg
Vitamin B6 (Pyridoxine Hydrochloride)
 2 mg
Folate (Folic Acid)
 400 mcg
Vitamin B12 (Methylcobalamin)
 6 mcg
Biotin
300 mcg
Pantothenic Acid (Calcium Pantothenate, Vitamin B5)
 10 mg
Calcium (Calcium Carbonate)
 150 mg
Iron (Ferrous Bisglycinate)
 9 mg
Iodine (Potassium Iodide)
 150 mcg
Magnesium (Aquamin TG seaweed derived Minerals, Magnesium Oxide)
 75 mg
Zinc (Zinc Bisglycinate)
 15 mg
Selenium (L-Selenomethionine)
 35 mcg
Copper (Copper Bisglycinate)
 1 mg
Manganese (Manganese Bisglycinate)
 2 mg
Chromium (Chromium Picolinate)
 60 mcg
Molybdenum (Sodium Molybdate)
 35 mcg
Potassium (Potassium Chloride)
 40 mg
Lutein (Marigold flowers extract)
 100 mcg
Lycopene (natural Tomato extract)
 100 mcg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
Iodine (Potassium Iodide) · 150 mcg OverallScore99
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Potassium iodide supplies a stable, readily absorbed source without marine contamination concerns. The label clearly states 150 mcg of iodine, an amount optimal for daily maintenance and below the established upper limit. The single-unit serving is simple, while cost efficiency is exceptional.

View ingredientView products
Manganese (Manganese Bisglycinate) · 2 mg OverallScore94
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

Manganese bisglycinate provides a high-quality chelated form with strong absorption potential. The clearly stated 2 mg serving is suitable for maintenance but falls short of the targeted range. Exceptional serving value strengthens its fit despite manganese being part of a broader formula.

View ingredientView products
Copper (Copper Bisglycinate) · 1 mg OverallScore94
A+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

Premium chelated copper pairs good absorption with a safe maintenance-level dose below the collection target. The zinc pairing falls within the intended balance range and supports routine use. A very low serving cost makes the copper component economical within the broader nutrient formula.

View ingredientView products
Loading alternative details
78 Performance

Women's Multivitamin

Innate Response Formulas
<p>Active B6, methylfolate, methylcobalamin, riboflavin phosphate, vitamin D3, and chelated zinc improve several core forms. Iron limits fit for people who do not need it, but the formula avoids the original's vitamin D2 and folic acid.</p>
71 Performance

Gentle Multiple

Bluebonnet Early Promise Prenatal
<p>Iron, magnesium, zinc, copper, manganese, chromium, and molybdenum use several chelated forms alongside vitamin D3 and broad vitamins. High folate and vitamin E plus repeated mineral-form entries reduce balance, and its prenatal dosing may not fit general use.</p>
82 Performance

M.V. Teen

Futurebiotics
<p>Practical vitamins with iron bisglycinate and chelated manganese and chromium provide a well-quantified age-focused option. Calcium and magnesium are modest and some forms remain basic, but no listed amount is clearly extreme for general teen use.</p>
79 Budget

Daily Vits

NOW
<p>A closely related formula preserves methylcobalamin, chelated iron, zinc, copper, and manganese at a slightly lower serving cost. Vitamin D2, magnesium oxide, and repeated label entries remain limitations, but the broader package supply improves value.</p>
77 Budget

One Daily Women's Health

Equate
<p>Broad vitamins, iron, iodine, zinc, copper, and calcium provide similar daily coverage at a lower serving cost. Most forms are unspecified and iron may not suit users without increased needs, so the value gain comes with less ingredient clarity.</p>
78 Budget

Multi with Iron Century Formula

Swanson
<p>Broad vitamins and minerals supply inexpensive daily coverage with clearly listed doses. The high iron amount and basic oxide, sulfate, and chloride forms make it less balanced than the original's chelated mineral approach.</p>
77 Value

One Daily Women's 50+

21st Century
<p>Broad once-daily coverage offers slightly lower serving cost with meaningful calcium, vitamin D3, iodine, and trace minerals. Oxide and sulfate forms plus assertive zinc, copper, manganese, and chromium reduce the quality advantage.</p>
77 Value

Energy

Bayer One A Day
<p>Broad vitamins, minerals, iron, and a clearly stated caffeine amount add explicit energy support at low serving cost. Most forms are unspecified, niacin is high, and caffeine makes it unsuitable for stimulant-sensitive users or evening use.</p>
70 Value

Daily Vits

NOW
<p>Methylcobalamin, chelated zinc, copper, and manganese, and broad vitamins retain much of the original formula at similar serving value. Repeated vitamin A, niacin, and pantothenic acid entries create uncertainty, while calcium and magnesium are only token amounts.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  2. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  3. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  4. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  5. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  6. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  7. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  8. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  9. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  10. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  11. Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
    Dominguez LJ; Veronese N; Ciriminna S; Pérez-Albela JL; Vásquez-López VF; Rodas-Regalado S; Di Bella G; Parisi A; Tagliaferri F; Barbagallo M · Nutrients · 2023
    Meta-analysis119,755 participants4 studies pooledBone Health forMagnesium
  12. Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
    Hung CH; Kwok YC; Yip J; Wong HH; Leung YY · Craniomaxillofacial trauma & reconstruction · 2025
    Systematic review386 participants8 studies pooledBone Health forMagnesium
  13. Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
    Zhao D; Huang S; Lu F; Wang B; Yang L; Qin L; Yang K; Li Y; Li W; Wang W; Tian S; Zhang X; Gao W; Wang Z; Zhang Y; Xie X; Wang J; Li J · Biomaterials · 2016
    Randomized trial48 participantsBone Health forMagnesium
  14. An update on magnesium and bone health.
    Rondanelli M; Faliva MA; Tartara A; Gasparri C; Perna S; Infantino V; Riva A; Petrangolini G; Peroni G · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022
    Narrative reviewBone Health forMagnesium
  15. Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
    Wang B; Tan X; Yao X; Zhu Z · Endocrine connections · 2025
    Cross-sectional study1,343 participantsBone Health forMagnesium
  16. Risk of Environmental Chemicals on Bone Fractures Is Independent of Low Bone Mass in US Adults: Insights from 2017 to 2018 NHANES.
    Ling R; Ai Y; Chen C; Zhang J; Zou Z; Cheng S; Li C; Li X; Wang B · Metabolites · 2023
    Cross-sectional study2,640 participantsBone Health forManganese
  17. The Manganese-Bone Connection: Investigating the Role of Manganese in Bone Health.
    Taskozhina G; Batyrova G; Umarova G; Issanguzhina Z; Kereyeva N · Journal of clinical medicine · 2024
    Narrative reviewBone Health forManganese
  18. Associations of multiple metals with bone mineral density: A population-based study in US adults.
    Wei MH; Cui Y; Zhou HL; Song WJ; Di DS; Zhang RY; Huang Q; Liu JA; Wang Q · Chemosphere · 2021
    Cross-sectional studyBone Health forManganese
  19. Sex-specific associations of urinary mixed-metal concentrations with femoral bone mineral density among older people: an NHANES (2017-2020) analysis.
    Li H; Li G; Yi M; Zhou J; Deng Y; Huang Y; He S; Meng X; Liu L · Frontiers in public health · 2024
    Cross-sectional study31 participantsBone Health forManganese
  20. Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study.
    Wang C; Zhu Y; Long H; Ou M; Zhao S · PloS one · 2022
    Cross-sectional study9,732 participantsBone Health forManganese
  21. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial.
    Moon RJ; D' Angelo S; Curtis EM; Ward KA; Crozier SR; Schoenmakers I; Javaid MK; Bishop NJ; Godfrey KM; Cooper C; Harvey NC; MAVIDOS Trial Group · The American journal of clinical nutrition · 2024
    Randomized trial454 participantsBone Health forVitamin D
  22. Vitamin D analogs and bone: preclinical and clinical studies with eldecalcitol.
    Matsumoto T; Takano T; Saito H; Takahashi F · BoneKEy reports · 2014
    Narrative reviewBone Health forVitamin D
  23. Efficacy of vitamin D fortified foods on bone mineral density and serum bone biomarkers: A systematic review and meta-analysis of interventional studies.
    Tangestani H; Djafarian K; Emamat H; Arabzadegan N; Shab-Bidar S · Critical reviews in food science and nutrition · 2020
    Meta-analysis1,786 participants20 studies pooledBone Health forVitamin D
  24. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial.
    Tsujita M; Doi Y; Obi Y; Hamano T; Tomosugi T; Futamura K; Okada M; Hiramitsu T; Goto N; Isaka Y; Takeda A; Narumi S; Watarai Y · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Randomized trial193 participantsBone Health forVitamin D
  25. Vitamin D supplementation and bone health in post-menopausal women: a 24-month randomized controlled intervention with enhanced bioavailability formulations.
    Rasool N; Munir Y · European journal of clinical nutrition · 2026
    Randomized trial612 participantsBone Health forVitamin D
  26. Increased incidence of fractures in middle-aged and elderly men with low intakes of phosphorus and zinc.
    Elmståhl S; Gullberg B; Janzon L; Johnell O; Elmståhl B · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 1999
    Cohort study6,576 participantsBone Health forZinc
  27. Zinc Supplementation Increases Procollagen Type 1 Amino-Terminal Propeptide in Premenarcheal Girls: A Randomized Controlled Trial.
    Berger PK; Pollock NK; Laing EM; Chertin V; Bernard PJ; Grider A; Shapses SA; Ding KH; Isales CM; Lewis RD · The Journal of nutrition · 2016
    Randomized trial147 participantsBone Health forZinc
  28. Randomized controlled trial of prenatal zinc supplementation and fetal bone growth.
    Merialdi M; Caulfield LE; Zavaleta N; Figueroa A; Costigan KA; Dominici F; Dipietro JA · The American journal of clinical nutrition · 2004
    Randomized trial242 participantsBone Health forZinc
  29. The effects of zinc supplementation on serum zinc, alkaline phosphatase activity and fracture healing of bones.
    Sadighi A; Roshan MM; Moradi A; Ostadrahimi A · Saudi medical journal · 2009
    Randomized trial60 participantsBone Health forZinc
  30. Is Zinc an Important Trace Element on Bone-Related Diseases and Complications? A Meta-analysis and Systematic Review from Serum Level, Dietary Intake, and Supplementation Aspects.
    Ceylan MN; Akdas S; Yazihan N · Biological trace element research · 2021
    Meta-analysis40 studies pooledBone Health forZinc
  31. Efficacy of oral magnesium therapy in the treatment of chronic constipation in spastic cerebral palsy children: a randomized controlled trial.
    Hassanein SMA; Deifallah SM; Bastawy HA · World journal of pediatrics : WJP · 2021
    Randomized trial100 participantsDigestive Health forMagnesium
  32. Ca:Mg ratio, medium-chain fatty acids, and the gut microbiome.
    Fan L; Zhu X; Sun S; Yu C; Huang X; Ness R; Dugan LL; Shu L; Seidner DL; Murff HJ; Fodor AA; Azcarate-Peril MA; Shrubsole MJ; Dai Q · Clinical nutrition (Edinburgh, Scotland) · 2022
    Randomized trial240 participantsDigestive Health forMagnesium
  33. The Magnesium-Rich Formula for Functional Constipation in Infants: a Randomized Comparator-Controlled Study.
    Benninga MA; MENA Infant Constipation Study Group; Vandenplas Y · Pediatric gastroenterology, hepatology & nutrition · 2022
    Randomized trial286 participantsDigestive Health forMagnesium
  34. A Randomized Double-blind Placebo-controlled Trial on the Effect of Magnesium Oxide in Patients With Chronic Constipation.
    Mori S; Tomita T; Fujimura K; Asano H; Ogawa T; Yamasaki T; Kondo T; Kono T; Tozawa K; Oshima T; Fukui H; Kimura T; Watari J; Miwa H · Journal of neurogastroenterology and motility · 2022
    Randomized trial34 participantsDigestive Health forMagnesium
  35. Magnesium treatment increases gut microbiome synthesizing vitamin D and inhibiting colorectal cancer: results from a double-blind precision-based randomized placebo-controlled trial.
    Sun E; Zhu X; Ness RM; Murff HJ; Sun S; Yu C; Fan L; Azcarate-Peril MA; Shrubsole MJ; Dai Q · The American journal of clinical nutrition · 2025
    Randomized trial240 participantsDigestive Health forMagnesium
  36. Dietary vitamin A intake and the incidence of diarrhea and respiratory infection among Sudanese children.
    Fawzi WW; Herrera MG; Willett WC; Nestel P; el Amin A; Mohamed KA · The Journal of nutrition · 1995
    Cohort study28,753 participantsDigestive Health forVitamin A
  37. Vitamin A supplementation decreases disease activity index in patients with ulcerative colitis: A randomized controlled clinical trial.
    Masnadi Shirazi K; Nikniaz Z; Masnadi Shirazi A; Rohani M · Complementary therapies in medicine · 2019
    Randomized trial150 participantsDigestive Health forVitamin A
  38. The effects of vitamin A supplementation on the morbidity of children born to HIV-infected women.
    Coutsoudis A; Bobat RA; Coovadia HM; Kuhn L; Tsai WY; Stein ZA · American journal of public health · 1995
    Randomized trial118 participantsDigestive Health forVitamin A
  39. A randomized, controlled trial of vitamin A in children with severe measles.
    Hussey GD; Klein M · The New England journal of medicine · 1990
    Randomized trial189 participantsDigestive Health forVitamin A
  40. Vitamin A supplementation reduces the monocyte chemoattractant protein-1 intestinal immune response of Mexican children.
    Long KZ; Santos JI; Estrada Garcia T; Haas M; Firestone M; Bhagwat J; Dupont HL; Hertzmark E; Rosado JL; Nanthakumar NN · The Journal of nutrition · 2006
    Randomized trial127 participantsDigestive Health Immunity forVitamin A
  41. Effect of Vitamin D Supplementation on Human Gut Microbiota: A Systematic Review of Randomized Controlled Trials.
    Zeb F; Osaili T; Hashim M; Alkalbani N; Papandreou D; Cheikh Ismail L; Naja F; Radwan H; Hasan H; Obaid RS; Savvaidis I; AlBlooshi S; Alam I · Nutrition reviews · 2026
    Systematic review1,458 participants14 studies pooledDigestive Health forVitamin D
  42. Vitamin D3 Induced Decrease in IL-17 and Malondialdehyde, and Increase in IL-10 and Total Antioxidant Capacity Levels in Patients with Irritable Bowel Syndrome.
    Amani R; Abbasnezhad A; Hajiani E; Cheraghian B; Abdoli Z; Choghakhori R · Iranian journal of immunology : IJI · 2018
    Randomized trial90 participantsDigestive Health forVitamin D
  43. Effect of vitamin D on gastrointestinal symptoms and health-related quality of life in irritable bowel syndrome patients: a randomized double-blind clinical trial.
    Abbasnezhad A; Amani R; Hajiani E; Alavinejad P; Cheraghian B; Ghadiri A · Neurogastroenterology and motility · 2018
    Randomized trial90 participantsDigestive Health General Health forVitamin D
  44. Maternal vitamin D intakes during pregnancy and child health outcome.
    Nasantogtokh E; Ganmaa D; Altantuya S; Amgalan B; Enkhmaa D · The Journal of steroid biochemistry and molecular biology · 2023
    Randomized trial311 participantsDigestive Health forVitamin D
  45. Vitamin D metabolites and the gut microbiome in older men.
    Thomas RL; Jiang L; Adams JS; Xu ZZ; Shen J; Janssen S; Ackermann G; Vanderschueren D; Pauwels S; Knight R; Orwoll ES; Kado DM · Nature communications · 2020
    Cross-sectional study567 participantsDigestive Health forVitamin D
  46. Oral zinc supplementation for the treatment of acute diarrhea in children: a systematic review and meta-analysis.
    Lamberti LM; Walker CL; Chan KY; Jian WY; Black RE · Nutrients · 2014
    Meta-analysis18,822 participants104 studies pooledDigestive Health forZinc
  47. Zinc with oral rehydration therapy reduces stool output and duration of diarrhea in hospitalized children: a randomized controlled trial.
    Bhatnagar S; Bahl R; Sharma PK; Kumar GT; Saxena SK; Bhan MK · Journal of pediatric gastroenterology and nutrition · 2004
    Randomized trial287 participantsDigestive Health forZinc
  48. Lower-Dose Zinc for Childhood Diarrhea - A Randomized, Multicenter Trial.
    Dhingra U; Kisenge R; Sudfeld CR; Dhingra P; Somji S; Dutta A; Bakari M; Deb S; Devi P; Liu E; Chauhan A; Kumar J; Semwal OP; Aboud S; Bahl R; Ashorn P; Simon J; Duggan CP; Sazawal S; Manji K · The New England journal of medicine · 2020
    Randomized trial4,500 participantsDigestive Health forZinc
  49. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsDigestive Health forZinc
  50. Short-course prophylactic zinc supplementation for diarrhea morbidity in infants of 6 to 11 months.
    Malik A; Taneja DK; Devasenapathy N; Rajeshwari K · Pediatrics · 2013
    Randomized trial272 participantsDigestive Health forZinc
  51. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
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    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
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    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
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    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  55. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
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  56. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  57. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  58. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  59. Magnesium-L-threonate improves sleep quality and daytime functioning in adults with self-reported sleep problems: A randomized controlled trial.
    Hausenblas HA; Lynch T; Hooper S; Shrestha A; Rosendale D; Gu J · Sleep medicine: X · 2025
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    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  61. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  62. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  63. Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
    Bo Y; Xu H; Zhang H; Zhang J; Wan Z; Zhao X; Yu Z · Nutrients · 2022
    Cohort study55,569 participantsGeneral Health forFolate
  64. The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
    Schorah CJ; Devitt H; Lucock M; Dowell AC · European journal of clinical nutrition · 1998
    Randomized trial119 participantsGeneral Health forFolate
  65. Associations of Serum Folate and Homocysteine Concentrations with All-Cause, Cardiovascular Disease, and Cancer Mortality in Men and Women in Korea: the Cardiovascular Disease Association Study.
    Song S; Song BM; Park HY · The Journal of nutrition · 2023
    Cohort study21,260 participantsGeneral Health forFolate
  66. The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
    Seyoum Tola F · Medicine · 2024
    Systematic reviewGeneral Health forFolate
  67. Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.
    Colapinto CK; O'Connor DL; Sampson M; Williams B; Tremblay MS · Journal of public health (Oxford, England) · 2017
    Systematic review71,847 participants46 studies pooledGeneral Health forFolate
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    Bjelakovic G; Gluud LL; Nikolova D; Whitfield K; Wetterslev J; Simonetti RG; Bjelakovic M; Gluud C · The Cochrane database of systematic reviews · 2014
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    Kow CS; Ramachandram DS; Hasan SS; Wong Z; Thiruchelvam K · Inflammopharmacology · 2024
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  70. Vitamin D Status and Mortality: A Systematic Review of Observational Studies.
    Heath AK; Kim IY; Hodge AM; English DR; Muller DC · International journal of environmental research and public health · 2019
    Systematic review84 studies pooledGeneral Health forVitamin D
  71. Meta-analysis of long-term vitamin D supplementation on overall mortality.
    Zheng Y; Zhu J; Zhou M; Cui L; Yao W; Liu Y · PloS one · 2014
    Meta-analysis42 studies pooledGeneral Health forVitamin D
  72. The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
    Patel MN; Maheshvari J; Patel N · Cureus · 2025
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    Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
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  74. Vitamins A, B, C, and D: A Short Review for the Dermatologist.
    Coerdt KM; Goggins CA; Khachemoune A · Alternative therapies in health and medicine · 2021
    Narrative reviewHair Health forBiotin
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    Soleymani T; Lo Sicco K; Shapiro J · Journal of drugs in dermatology : JDD · 2018
    Narrative reviewHair Health forBiotin
  76. Menkes disease and response to copper histidine: An Indian case series.
    Yoganathan S; Sudhakar SV; Arunachal G; Thomas M; Subramanian A; George R; Danda S · Annals of Indian Academy of Neurology · 2022
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  77. Trace element levels in alopecia areata.
    Bhat YJ; Manzoor S; Khan AR; Qayoom S · Indian journal of dermatology, venereology and leprology · 2009
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  78. UV damage to hair and the effect of antioxidants and metal chelators.
    Millington KR; Marsh JM · International journal of cosmetic science · 2021
    In vitro / ex vivo studyHair Health forCopper
  79. Preserving fibre health: reducing oxidative stress throughout the life of the hair fibre.
    Marsh JM; Davis MG; Lucas RL; Reilman R; Styczynski PB; Li C; Mamak M; McComb DW; Williams RE; Godfrey S; Navqi KR; Chechik V · International journal of cosmetic science · 2016
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  80. Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
    Zhang W; Fan M; Wang C; Mahawar K; Parmar C; Chen W; Yang W; Global Bariatric Research Collaborative · Obesity surgery · 2021
    Meta-analysis2,538 participants18 studies pooledHair Health forFolate
  81. Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
    Al-Fawaeir S; Al-Odat I · Diseases (Basel, Switzerland) · 2025
    Case-control study200 participantsHair Health forFolate
  82. Twelve weeks of protracted venous infusion of fluorouracil (5-FU) is as effective as 6 months of bolus 5-FU and folinic acid as adjuvant treatment in colorectal cancer.
    Saini A; Norman AR; Cunningham D; Chau I; Hill M; Tait D; Hickish T; Iveson T; Lofts F; Jodrell D; Ross PJ; Oates J · British journal of cancer · 2003
    Randomized trialHair Health forFolate
  83. Role of oxaliplatin combined with 5-fluorouracil and folinic acid in the first- and second-line treatment of advanced colorectal cancer.
    Jonker D; Rumble RB; Maroun J; Gastrointestinal Cancer Disease Site Groupof Cancer Care Ontario’s Program in Evidence-Based Care · Current oncology (Toronto, Ont.) · 2012
    Randomized trialHair Health forFolate
  84. Phase I-II study of vinorelbine in combination with 5-fluorouracil and folinic acid as first-line chemotherapy in metastatic breast cancer: a regimen with a low subjective toxic burden.
    Nolè F; de Braud F; Aapro M; Minchella I; De Pas TM; Zampino MG; Monti S; Andreoni G; Goldhirsch A · Annals of oncology : official journal of the European Society for Medical Oncology · 1997
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  85. The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
    Davidovici B; Drutin Y; Ben-Tov A; Mimouni D; Wohl Y · Journal of personalized medicine · 2026
    Case-control study100,203 participantsHair Health forIron
  86. Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
    Treister-Goltzman Y; Yarza S; Peleg R · Skin appendage disorders · 2022
    Meta-analysis10,029 participants36 studies pooledHair Health forIron
  87. Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.
    Chinisaz F; Maleki T; Najjari K; Miratashi Yazdi SA · Obesity surgery · 2026
    Cohort study261 participantsHair Health forIron
  88. Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium.
    Thamotharan N; Harikumar MV; Sundaram M; Swaminathan A; Rangarajan S · Cureus · 2026
    Cross-sectional study100 participantsHair Health forIron
  89. Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia.
    Lin CS; Chan LY; Wang JH; Chang CH · Tzu chi medical journal · 2023
    Cohort study155 participantsHair Health forIron
  90. Beyond Efficacy: 0.6% Selenium Disulfide Shampoo Matches 2% Ketoconazole for Seborrheic Dermatitis with Superior Cosmesis.
    Farris PK; Barbosa V; Houshman EB; Kovylkina N · Journal of drugs in dermatology : JDD · 2026
    Randomized trial87 participantsHair Health forSelenium
  91. Selenium Disulfide-based shampoo applied for 4 weeks significantly improves dandruff and seborrheic dermatitis.
    Turcu G; Artenie C; Nowicka D; Arenbergerová M; Lazaridou E; Khobzei K; Ataseven A; Part M; Leclerc-Mercier S · European journal of dermatology : EJD · 2023
    Observational study1,407 participantsHair Health forSelenium
  92. A Comparative Randomized Clinical Study Assessing the Efficacy of a 1% Selenium Disulfide-Based Shampoo versus 2% Ketoconazole Shampoo in Subjects with Moderate to Severe Scalp Seborrheic Dermatitis.
    Barbosa V; Melo DF; Vañó-Galván S; Lutchmanen-Kolanthan V; Sant'Anna B; Leclerc-Mercier S; Reygagne P · Skin appendage disorders · 2025
    Randomized trial64 participantsHair Health forSelenium
  93. Changes of serum trace elements level in patients with alopecia areata: A meta-analysis.
    Jin W; Zheng H; Shan B; Wu Y · The Journal of dermatology · 2018
    Meta-analysis764 participantsHair Health forSelenium
  94. Scientific opinion on the tolerable upper intake level for selenium.
    EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA); Turck D; Bohn T; Castenmiller J; de Henauw S; Hirsch-Ernst KI; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Peláez C; Pentieva K; Siani A; Thies F; Tsabouri S; Vinceti M; Aggett P; Crous Bou M; Cubadda F; Ciccolallo L; de Sesmaisons Lecarré A; Fabiani L; Titz A; Naska A · EFSA journal. European Food Safety Authority · 2023
    Systematic reviewHair Health forSelenium
  95. Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
    Karatas F; Sahin S; Sever AR; Altundag K · SpringerPlus · 2016
    Narrative reviewHair Health forVitamin C
  96. Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
    Ba Y; Shen L; Peng X; Zhang Y; Wang J · Medicine · 2024
    Methods validation study201,019 participantsHair Health forVitamin C
  97. Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
    Liu CS; Chen HW; Lii CK; Tsai CS; Kuo CL; Wei YH · Environmental and molecular mutagenesis · 2002
    Observational studyHair Health forVitamin C
  98. Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
    Hawkes JA; Lewis DM; Mama J; Murray J · International journal of cosmetic science · 2026
    Methods validation studyHair Health forVitamin C
  99. A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
    Kilic M; Taskesen M; Coskun T; Gürakan F; Tokatli A; Sivri HS; Dursun A; Schmitt S; Küry S · JIMD reports · 2013
    Case reportHair Health forVitamin C
  100. Increased prevalence of vitamin D deficiency in patients with alopecia areata: a systematic review and meta-analysis.
    Lee S; Kim BJ; Lee CH; Lee WS · Journal of the European Academy of Dermatology and Venereology : JEADV · 2018
    Meta-analysis2,039 participants14 studies pooledHair Health forVitamin D
  101. Intralesional vitamin D3 in treatment of alopecia areata: A randomized controlled clinical trial.
    Rashad AF; Elgamal E; Fouda I · Journal of cosmetic dermatology · 2022
    Randomized trial60 participantsHair Health forVitamin D
  102. Vitamin D and its Analogs in Treatment of Mild to Moderate Alopecia Areata: Systematic Review and Meta-Analysis.
    Alsaati AA; Kaliyadan F; Alsaadoun D; Alzakry LM; Alzabadin RA; Hakami TH; Rubaian NFB · Indian dermatology online journal · 2025
    Meta-analysisHair Health forVitamin D
  103. Topical calcipotriol vs narrowband ultraviolet B in treatment of alopecia areata: a randomized-controlled trial.
    El Taieb MA; Hegazy EM; Ibrahim HM; Osman AB; Abualhamd M · Archives of dermatological research · 2020
    Randomized trial60 participantsHair Health forVitamin D
  104. Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.
    Chen Y; Dong X; Wang Y; Li Y; Xiong L; Li L · Journal of cosmetic dermatology · 2024
    Meta-analysis10,670 participants23 studies pooledHair Health forVitamin D
  105. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  106. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
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    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  108. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  109. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  110. The immune response in iron-deficient children: Impaired cellular defense mechanisms with altered humoral components.
    Macdougall LG; Anderson R; McNab GM; Katz J · The Journal of pediatrics · 1975
    Single-arm trial27 participantsImmunity forIron
  111. The role of iron homeostasis in remodeling immune function and regulating inflammatory disease.
    Mu Q; Chen L; Gao X; Shen S; Sheng W; Min J; Wang F · Science bulletin · 2023
    Narrative reviewImmunity forIron
  112. Hepcidin--a peptide hormone at the interface of innate immunity and iron metabolism.
    Ganz T · Current topics in microbiology and immunology · 2006
    Narrative reviewImmunity forIron
  113. Adaptive immunity and vaccination - iron in the spotlight.
    Preston AE; Drakesmith H; Frost JN · Immunotherapy advances · 2025
    Narrative reviewImmunity forIron
  114. Buried Treasure: Evolutionary Perspectives on Microbial Iron Piracy.
    Barber MF; Elde NC · Trends in genetics : TIG · 2016
    Narrative reviewImmunity forIron
  115. Hypomagnesemia Is a Risk Factor for Infections after Kidney Transplantation: A Retrospective Cohort Analysis.
    Odler B; Deak AT; Pregartner G; Riedl R; Bozic J; Trummer C; Prenner A; Söllinger L; Krall M; Höflechner L; Hebesberger C; Boxler MS; Berghold A; Schemmer P; Pilz S; Rosenkranz AR · Nutrients · 2021
    Cohort study376 participantsImmunity forMagnesium
  116. Higher Intake of Dietary Magnesium Is Inversely Associated With COVID-19 Severity and Symptoms in Hospitalized Patients: A Cross-Sectional Study.
    Nouri-Majd S; Ebrahimzadeh A; Mousavi SM; Zargarzadeh N; Eslami M; Santos HO; Taghizadeh M; Milajerdi A · Frontiers in nutrition · 2022
    Cross-sectional study250 participantsImmunity forMagnesium
  117. Mg2+ regulates cytotoxic functions of NK and CD8 T cells in chronic EBV infection through NKG2D.
    Chaigne-Delalande B; Li FY; O'Connor GM; Lukacs MJ; Jiang P; Zheng L; Shatzer A; Biancalana M; Pittaluga S; Matthews HF; Jancel TJ; Bleesing JJ; Marsh RA; Kuijpers TW; Nichols KE; Lucas CL; Nagpal S; Mehmet H; Su HC; Cohen JI; Uzel G; Lenardo MJ · Science (New York, N.Y.) · 2013
    Single-arm trialImmunity forMagnesium
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    Mooren FC; Golf SW; Völker K · Magnesium research · 2003
    Randomized trialImmunity forMagnesium
  119. Maternal and neonatal outcomes following magnesium sulfate in the setting of chorioamnionitis: a meta-analysis.
    Pergialiotis V; Sapantzoglou I; Rodolaki K; Varthaliti A; Theodora M; Antsaklis P; Thomakos N; Stavros S; Daskalakis G; Papapanagiotou A · Archives of gynecology and obstetrics · 2024
    Meta-analysis6,559 participants8 studies pooledImmunity forMagnesium
  120. Effects of selenium supplementation on selenoprotein gene expression and response to influenza vaccine challenge: a randomised controlled trial.
    Goldson AJ; Fairweather-Tait SJ; Armah CN; Bao Y; Broadley MR; Dainty JR; Furniss C; Hart DJ; Teucher B; Hurst R · PloS one · 2011
    Randomized trial119 participantsImmunity forSelenium
  121. Effect of selenium on immune response against hepatitis B vaccine with accelerated method in insulin-dependent diabetes mellitus patients.
    Janbakhsh A; Mansouri F; Vaziri S; Sayad B; Afsharian M; Rahimi M; Shahebrahimi K; Salari F · Caspian journal of internal medicine · 2013
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    Yu SY; Li WG; Zhu YJ; Yu WP; Hou C · Biological trace element research · 1990
    Non-randomized trial20,847 participantsImmunity forSelenium
  123. Selenium nanoparticles as adjunctive therapy in sepsis: A pilot randomized clinical trial.
    Gu WJ; Huang W; Zhao FZ; Yuan XK; Jin K; Chen JL; Zhang CY; Huang Y; He L; Zhuang H; Yin HY; Chen T · Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2026
    Randomized trial70 participantsImmunity forSelenium
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    Gärtner R; Gasnier BC; Dietrich JW; Krebs B; Angstwurm MW · The Journal of clinical endocrinology and metabolism · 2002
    Randomized trial70 participantsImmunity forSelenium
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    Semba RD; Muhilal; Scott AL; Natadisastra G; Wirasasmita S; Mele L; Ridwan E; West KP; Sommer A · The Journal of nutrition · 1992
    Randomized trial236 participantsImmunity forVitamin A
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    Roy SK; Islam A; Molla A; Akramuzzaman SM; Jahan F; Fuchs G · European journal of clinical nutrition · 1997
    Randomized trial50 participantsImmunity forVitamin A
  127. Vitamin A supplementation reduces measles morbidity in young African children: a randomized, placebo-controlled, double-blind trial.
    Coutsoudis A; Broughton M; Coovadia HM · The American journal of clinical nutrition · 1991
    Randomized trial60 participantsImmunity forVitamin A
  128. Vitamin A supplementation enhances specific IgG antibody levels and total lymphocyte numbers while improving morbidity in measles.
    Coutsoudis A; Kiepiela P; Coovadia HM; Broughton M · The Pediatric infectious disease journal · 1992
    Randomized trial60 participantsImmunity forVitamin A
  129. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
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    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
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    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  132. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  133. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  134. Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
    Martineau AR; Jolliffe DA; Greenberg L; Aloia JF; Bergman P; Dubnov-Raz G; Esposito S; Ganmaa D; Ginde AA; Goodall EC; Grant CC; Janssens W; Jensen ME; Kerley CP; Laaksi I; Manaseki-Holland S; Mauger D; Murdoch DR; Neale R; Rees JR; Simpson S; Stelmach I; Trilok Kumar G; Urashima M; Camargo CA; Griffiths CJ; Hooper RL · Health technology assessment (Winchester, England) · 2020
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    Zhu Z; Zhu X; Gu L; Zhan Y; Chen L; Li X · Frontiers in nutrition · 2022
    Meta-analysis4,859 participants10 studies pooledImmunity forVitamin D
  136. Vitamin D3 and deconvoluting a rash.
    Ernst MK; Evans ST; Techner JM; Rothbaum RM; Christensen LF; Onay UV; Biyashev D; Demczuk MM; Nguyen CV; Honda KS; McCormick TS; Tsoi LC; Gudjonsson JE; Cooper KD; Lu KQ · JCI insight · 2023
    Randomized trial28 participantsImmunity forVitamin D
  137. Effect of vitamin D3 supplementation on cellular immunity and inflammatory markers in COVID-19 patients admitted to the ICU.
    Bychinin MV; Klypa TV; Mandel IA; Yusubalieva GM; Baklaushev VP; Kolyshkina NA; Troitsky AV · Scientific reports · 2022
    Randomized trial110 participantsImmunity forVitamin D
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    Anitua E; Tierno R; Alkhraisat MH · Clinical nutrition (Edinburgh, Scotland) · 2022
    Meta-analysis50,554 participants65 studies pooledImmunity forVitamin D
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    Meydani SN; Barklund MP; Liu S; Meydani M; Miller RA; Cannon JG; Morrow FD; Rocklin R; Blumberg JB · The American journal of clinical nutrition · 1990
    Randomized trial32 participantsImmunity forVitamin E
  140. Immunomodulatory effects of palm-derived tocotrienol-rich fraction in healthy volunteers following influenza vaccination: A randomised clinical trial.
    Chen S; Ahmad B; Palanisamy UD; Hafid SRA; Selvaduray KR; Radhakrishnan AK · Nutrition research (New York, N.Y.) · 2026
    Randomized trial150 participantsImmunity forVitamin E
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    Mahalingam D; Radhakrishnan AK; Amom Z; Ibrahim N; Nesaretnam K · European journal of clinical nutrition · 2011
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    Hemilä H; Virtamo J; Albanes D; Kaprio J · Chest · 2004
    Randomized trial29,133 participantsImmunity forVitamin E
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    Randomized trial88 participantsImmunity forVitamin E
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    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
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    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
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    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  147. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  148. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  149. Biotin for the treatment of nail disease: what is the evidence?
    Lipner SR; Scher RK · The Journal of dermatological treatment · 2018
    Narrative reviewNail Health forBiotin
  150. Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy.
    Colombo VE; Gerber F; Bronhofer M; Floersheim GL · Journal of the American Academy of Dermatology · 1991
    Other32 participantsNail Health forBiotin
  151. Treatment of brittle nail with a hydroxypropyl chitosan-based lacquer, alone or in combination with oral biotin: A randomized, assessor-blinded trial.
    Chiavetta A; Mazzurco S; Secolo MP; Tomarchio G; Milani M · Dermatologic therapy · 2020
    Randomized trial50 participantsNail Health forBiotin
  152. Vitamins and minerals: their role in nail health and disease.
    Scheinfeld N; Dahdah MJ; Scher R · Journal of drugs in dermatology : JDD · 2007
    Narrative reviewNail Health forBiotin Nail Health forIron Nail Health forZinc
  153. A pilot iron substitution programme in female blood donors with iron deficiency without anaemia.
    Pittori C; Buser A; Gasser UE; Sigle J; Job S; Rüesch M; Tichelli A; Infanti L · Vox sanguinis · 2011
    Non-randomized trial224 participantsNail Health forIron
  154. Evaluation of nail abnormalities.
    Tully AS; Trayes KP; Studdiford JS · American family physician · 2013
    Narrative reviewNail Health forIron
  155. Efficacy and tolerability of a biomineral formulation for treatment of onychoschizia: a randomized trial
    Adele Sparavigna, Beatrice Tenconi, Laura La Penna · Clinical, Cosmetic and Investigational Dermatology · 2019
    Randomized trial48 participantsNail Health forIron
  156. Vitamin C Deficiency in Inflammatory Bowel Disease: The Forgotten Micronutrient.
    Dunleavy KA; Ungaro RC; Manning L; Gold S; Novak J; Colombel JF · Crohn's & colitis 360 · 2023
    Other20 participantsNail Health forVitamin C
  157. Evaluation of biophysical skin parameters and hair changes in patients with acne vulgaris treated with isotretinoin, and the effect of biotin use on these parameters.
    Aksac SE; Bilgili SG; Yavuz GO; Yavuz IH; Aksac M; Karadag AS · International journal of dermatology · 2021
    Non-randomized trial60 participantsSkin Health forBiotin
  158. Generalized seborrhoeic dermatitis. Clinical and therapeutic data of 25 patients.
    Messaritakis J; Kattamis C; Karabula C; Matsaniotis N · Archives of disease in childhood · 1976
    Non-randomized trial25 participantsSkin Health forBiotin
  159. Holocarboxylase synthetase deficiency: novel clinical and molecular findings.
    Tammachote R; Janklat S; Tongkobpetch S; Suphapeetiporn K; Shotelersuk V · Clinical genetics · 2010
    Case series4 participantsSkin Health forBiotin
  160. Noninferiority of Copper Dressings Than Negative Pressure Wound Therapy in Healing Diabetic Wounds: A Randomized Clinical Trial.
    Melamed E; Dabbah J; Israel T; Kan I; Pinzur MS; Roth T; Borkow G · Advances in wound care · 2026
    Randomized trialSkin Health forCopper
  161. Improvement of facial skin characteristics using copper oxide containing pillowcases: a double-blind, placebo-controlled, parallel, randomized study.
    Borkow G; Gabbay J; Lyakhovitsky A; Huszar M · International journal of cosmetic science · 2010
    Randomized trial57 participantsSkin Health forCopper
  162. Radially Electrospun Fibrous Membrane Incorporated with Copper Peroxide Nanodots Capable of Self-Catalyzed Chemodynamic Therapy for Angiogenesis and Healing Acceleration of Diabetic Wounds.
    Huang Y; Qi L; Liu Z; Jiang Y; Wang J; Liu L; Li Y; Zhang L; Feng G · ACS applied materials & interfaces · 2023
    Animal experimentSkin Health forCopper
  163. Engineering copper nanoparticle/polysaccharide-immobilized cotton gauze for accelerated healing of Staphylococcus aureus-infected dermal wounds.
    Sahoo M; Banerjee T; Virkar S; Das S; Biswas S; Mitra D · Journal of materials chemistry. B · 2026
    Animal experimentSkin Health forCopper
  164. Stimulation of Healing of Non-Infected Stagnated Diabetic Wounds by Copper Oxide-Impregnated Wound Dressings.
    Melamed E; Rovitsky A; Roth T; Assa L; Borkow G · Medicina (Kaunas, Lithuania) · 2021
    Single-arm trialSkin Health forCopper
  165. Systemic and skin-targeting beneficial effects of lycopene-enriched ice cream: A pilot study.
    Chernyshova MP; Pristenskiy DV; Lozbiakova MV; Chalyk NE; Bandaletova TY; Petyaev IM · Journal of dairy science · 2019
    Randomized trialSkin Health forLycopene
  166. Topical lycopene emulgel significantly improves biophysical parameters of human skin.
    Sohail M; Muhammad Faran Ashraf Baig M; Akhtar N; Chen Y; Xie B; Li B · European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2022
    Clinical trialSkin Health forLycopene
  167. Supplementation with tomato-based products increases lycopene, phytofluene, and phytoene levels in human serum and protects against UV-light-induced erythema.
    Aust O; Stahl W; Sies H; Tronnier H; Heinrich U · International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2005
    Randomized trialSkin Health forLycopene
  168. Association of Vitamin A Intake With Cutaneous Squamous Cell Carcinoma Risk in the United States.
    Kim J; Park MK; Li WQ; Qureshi AA; Cho E · JAMA dermatology · 2024
    Cohort study123,570 participantsSkin Health forLycopene
  169. β-Carotene and other carotenoids in protection from sunlight.
    Stahl W; Sies H · The American journal of clinical nutrition · 2013
    Narrative reviewSkin Health forLycopene
  170. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  171. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  172. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  173. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  174. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  175. Randomized controlled trial using vitamins E and D supplementation in atopic dermatitis.
    Javanbakht MH; Keshavarz SA; Djalali M; Siassi F; Eshraghian MR; Firooz A; Seirafi H; Ehsani AH; Chamari M; Mirshafiey A · The Journal of dermatological treatment · 2011
    Randomized trial45 participantsSkin Health forVitamin E
  176. Serum vitamin E levels and chronic inflammatory skin diseases: A systematic review and meta-analysis.
    Liu X; Yang G; Luo M; Lan Q; Shi X; Deng H; Wang N; Xu X; Zhang C · PloS one · 2022
    Meta-analysis20 studies pooledSkin Health forVitamin E
  177. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forVitamin E Skin Health forZinc
  178. Effects of tocotrienol on aging skin: A systematic review.
    Ghazali NI; Mohd Rais RZ; Makpol S; Chin KY; Yap WN; Goon JA · Frontiers in pharmacology · 2022
    Systematic reviewSkin Health forVitamin E
  179. Carotenoids and carotenoids plus vitamin E protect against ultraviolet light-induced erythema in humans.
    Stahl W; Heinrich U; Jungmann H; Sies H; Tronnier H · The American journal of clinical nutrition · 2000
    Randomized trialSkin Health forVitamin E
  180. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  181. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  182. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  183. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  184. Magnesium and anabolic hormones in older men.
    Maggio M; Ceda GP; Lauretani F; Cattabiani C; Avantaggiato E; Morganti S; Ablondi F; Bandinelli S; Dominguez LJ; Barbagallo M; Paolisso G; Semba RD; Ferrucci L · International journal of andrology · 2012
    Cohort study399 participantsTestosterone Support forMagnesium
  185. Analysis of the relationship between the blood concentration of several metals, macro- and micronutrients and endocrine disorders associated with male aging.
    Rotter I; Kosik-Bogacka DI; Dołęgowska B; Safranow K; Kuczyńska M; Laszczyńska M · Environmental geochemistry and health · 2017
    Cross-sectional study313 participantsTestosterone Support forMagnesium
  186. Effect of magnesium supplementation in improving hyperandrogenism, hirsutism, and sleep quality in women with polycystic ovary syndrome: A randomized, placebo-controlled clinical trial.
    Gholizadeh-Moghaddam M; Ghasemi-Tehrani H; Askari G; Jaripur M; Clark CCT; Rouhani MH · Health science reports · 2024
    Randomized trial64 participantsTestosterone Support forMagnesium
  187. The effects of trace element supplementation on glycolipid metabolism in PCOS: a systematic review and meta-analysis.
    Yang L; Gao Y; Zhao W; Qi Y; Duo X; Wang H · Frontiers in nutrition · 2025
    Meta-analysis1,600 participants25 studies pooledTestosterone Support forMagnesium
  188. Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion.
    Cinar V; Polat Y; Baltaci AK; Mogulkoc R · Biological trace element research · 2011
    Non-randomized trial20 participantsTestosterone Support forMagnesium
  189. Efficacy of selenium and/or N-acetyl-cysteine for improving semen parameters in infertile men: a double-blind, placebo controlled, randomized study.
    Safarinejad MR; Safarinejad S · The Journal of urology · 2009
    Randomized trial468 participantsTestosterone Support forSelenium
  190. The association between metal exposure and semen quality in Chinese males: The mediating effect of androgens.
    Liu P; Yuan G; Zhou Q; Liu Y; He X; Zhang H; Guo Y; Wen Y; Huang S; Ke Y; Chen J · Environmental pollution (Barking, Essex : 1987) · 2020
    Cross-sectional study1,136 participantsTestosterone Support forSelenium
  191. In utero and peripubertal metals exposure in relation to reproductive hormones and sexual maturation and progression among girls in Mexico City.
    Ashrap P; Sánchez BN; Téllez-Rojo MM; Basu N; Tamayo-Ortiz M; Peterson KE; Meeker JD; Watkins DJ · Environmental research · 2019
    Observational study132 participantsTestosterone Support forSelenium
  192. Relationship between serum levels of testosterone, zinc and selenium in infertile males attending fertility clinic in Nnewi, south east Nigeria.
    Oluboyo AO; Adijeh RU; Onyenekwe CC; Oluboyo BO; Mbaeri TC; Odiegwu CN; Chukwuma GO; Onwuasoanya UF · African journal of medicine and medical sciences · 2013
    Observational studyTestosterone Support forSelenium
  193. EVALUATION OF MALE SEX HORMONES AND TRACE ELEMENTS IN MALE TYPE 2 DIABETIC PATIENTS ATTENDING NNAMDI AZIKIWE UNIVERSITY TEACHING HOSPITAL DIABETIC CLINICS.
    Ubajaka CF; Meludu SC; Dioka CE; Onah CE; Osuji CU; Modebe IA; Ifeadike GC; Okwara JE; Amah UK; Nnebue CC · Nigerian journal of medicine : journal of the National Association of Resident Doctors of Nigeria · 2015
    Cross-sectional studyTestosterone Support forSelenium
  194. Effect of Two Different Doses of Vitamin D Supplementation on Metabolic Profiles of Insulin-Resistant Patients with Polycystic Ovary Syndrome.
    Jamilian M; Foroozanfard F; Rahmani E; Talebi M; Bahmani F; Asemi Z · Nutrients · 2018
    Randomized trial90 participantsTestosterone Support forVitamin D
  195. Androgens and hirsutism score of overweight women with polycystic ovary syndrome improved after vitamin D treatment: A randomized placebo controlled clinical trial.
    Al-Bayyari N; Al-Domi H; Zayed F; Hailat R; Eaton A · Clinical nutrition (Edinburgh, Scotland) · 2021
    Randomized trial60 participantsTestosterone Support forVitamin D
  196. Association between plasma 25-OH vitamin D and testosterone levels in men.
    Nimptsch K; Platz EA; Willett WC; Giovannucci E · Clinical endocrinology · 2012
    Case-control study1,362 participantsTestosterone Support forVitamin D
  197. Causal Link Between Vitamin D and Total Testosterone in Men: A Mendelian Randomization Analysis.
    Chen C; Zhai H; Cheng J; Weng P; Chen Y; Li Q; Wang C; Xia F; Wang N; Lu Y · The Journal of clinical endocrinology and metabolism · 2020
    Other4,254 participantsTestosterone Support forVitamin D
  198. Associations of vitamin D status and vitamin D-related polymorphisms with sex hormones in older men.
    Rafiq R; van Schoor NM; Sohl E; Zillikens MC; Oosterwerff MM; Schaap L; Lips P; de Jongh RT · The Journal of steroid biochemistry and molecular biology · 2017
    Cohort study643 participantsTestosterone Support forVitamin D
  199. Effect of vitamin E on function of pituitary-gonadal axis in male rats and human subjects.
    Umeda F; Kato K; Muta K; Ibayashi H · Endocrinologia japonica · 1983
    Clinical trialTestosterone Support forVitamin E
  200. Can Nutrition Intake Counteract Harmful Impact of Endocrine Disruptors on Male Sex Hormones? Insights from NHANES 2013-2016.
    Nian M; Xiang J; Xu P; Tan L; Chen Z; Fang M · Bulletin of environmental contamination and toxicology · 2025
    Cross-sectional study1,455 participantsTestosterone Support forVitamin E
  201. Effect of vitamin E supplementation on cardiometabolic risk factors, inflammatory and oxidative markers and hormonal functions in PCOS (polycystic ovary syndrome): a systematic review and meta-analysis.
    Tefagh G; Payab M; Qorbani M; Sharifi F; Sharifi Y; Ebrahimnegad Shirvani MS; Pourghazi F; Atlasi R; Shadman Z; Rezaei N; Mohammadi-Vajari E; Larijani B; Ebrahimpur M · Scientific reports · 2022
    Meta-analysis12 studies pooledTestosterone Support forVitamin E
  202. Environmental exposure to metals and male reproductive hormones: circulating testosterone is inversely associated with blood molybdenum.
    Meeker JD; Rossano MG; Protas B; Padmanahban V; Diamond MP; Puscheck E; Daly D; Paneth N; Wirth JJ · Fertility and sterility · 2010
    Cross-sectional study219 participantsTestosterone Support forZinc
  203. Nonpharmacological Interventions for the Management of Testosterone and Sperm Parameters: A Scoping Review.
    Santos HO; Cadegiani FA; Forbes SC · Clinical therapeutics · 2022
    Scoping reviewTestosterone Support forZinc
  204. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization.
    Fallah A; Mohammad-Hasani A; Colagar AH · Journal of reproduction & infertility · 2020
    Narrative reviewTestosterone Support forZinc
  205. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  206. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  207. What did we learn in 35 years of research on nutrition and supplements for age-related macular degeneration: a systematic review.
    Pameijer EM; Heus P; Damen JAA; Spijker R; Hooft L; Ringens PJ; Imhof SM; van Leeuwen R · Acta ophthalmologica · 2023
    Systematic review27 studies pooledVision Support forCopper
  208. Dietary Nutrient Intake and Progression to Late Age-Related Macular Degeneration in the Age-Related Eye Disease Studies 1 and 2.
    Agrón E; Mares J; Clemons TE; Swaroop A; Chew EY; Keenan TDL; AREDS and AREDS2 Research Groups · Ophthalmology · 2021
    Cohort study8,242 participantsVision Support forCopper
  209. Association between late age-related macular degeneration and dietary intake of copper, iron, zinc and selenium: a 2005-2008 NHANES cross-sectional observational study.
    Lu Y; Li C; Liu Y; Wu T; Lu P · BMC ophthalmology · 2025
    Observational study4,996 participantsVision Support forCopper
  210. Associations between dietary nutrient intake and the risk of multiple age-related ocular diseases: evidence from longitudinal analysis.
    Yang Y; Zou H · The journal of nutrition, health & aging · 2026
    Cohort study103,192 participantsVision Support forCopper
  211. Dietary habits and dietary nutrient intake in patients with age-related macular degeneration: A case-control study.
    Šalková Kráľová J; Kolář P; Kapounová Z; Veselý P; Derflerová Brázdová Z · Central European journal of public health · 2023
    Case-control study151 participantsVision Support forCopper
  212. The Associations of Plasma Carotenoids and Vitamins With Risk of Age-Related Macular Degeneration: Results From a Matched Case-Control Study in China and Meta-Analysis.
    Jiang H; Fan Y; Li J; Wang J; Kong L; Wang L; Li Z; Ma M; Shi X; Liu S; Shi J; Zhu H; Liu X; Ma L · Frontiers in nutrition · 2022
    Meta-analysis9 studies pooledVision Support forLycopene
  213. Serum carotenoids and risk of age-related macular degeneration in a chinese population sample.
    Zhou H; Zhao X; Johnson EJ; Lim A; Sun E; Yu J; Zhang Y; Liu X; Snellingen T; Shang F; Liu N · Investigative ophthalmology & visual science · 2011
    Case-control study263 participantsVision Support forLycopene
  214. Serum antioxidants and age-related macular degeneration in a population-based case-control study.
    Mares-Perlman JA; Brady WE; Klein R; Klein BE; Bowen P; Stacewicz-Sapuntzakis M; Palta M · Archives of ophthalmology (Chicago, Ill. : 1960) · 1995
    Case-control study334 participantsVision Support forLycopene
  215. Association between serum carotenoid concentrations and risk of major age-related eye diseases among middle-aged and older adults.
    Che S; Ma Y; Cao J · Frontiers in medicine · 2025
    Cross-sectional study1,478 participantsVision Support forLycopene
  216. Plasma antioxidant vitamins and carotenoids and age-related cataract
    Gale CR, Hall NF, Phillips DI, Martyn CN · Ophthalmology · 2001
    Cross-sectional study372 participantsVision Support forLycopene
  217. A randomized trial of vitamin A and vitamin E supplementation for retinitis pigmentosa.
    Berson EL; Rosner B; Sandberg MA; Hayes KC; Nicholson BW; Weigel-DiFranco C; Willett W · Archives of ophthalmology (Chicago, Ill. : 1960) · 1993
    Randomized trial601 participantsVision Support forVitamin A
  218. Efficacy and safety of retinol palmitate ophthalmic solution in the treatment of dry eye: a Japanese Phase II clinical trial.
    Toshida H; Funaki T; Ono K; Tabuchi N; Watanabe S; Seki T; Otake H; Kato T; Ebihara N; Murakami A · Drug design, development and therapy · 2018
    Randomized trial66 participantsVision Support forVitamin A
  219. Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age.
    Imdad A; Mayo-Wilson E; Haykal MR; Regan A; Sidhu J; Smith A; Bhutta ZA · The Cochrane database of systematic reviews · 2022
    Meta-analysis1,223,856 participants47 studies pooledVision Support forVitamin A
  220. Vitamin A supplementation improves retinal function in infants at risk of retinopathy of prematurity.
    Mactier H; McCulloch DL; Hamilton R; Galloway P; Bradnam MS; Young D; Lavy T; Farrell L; Weaver LT · The Journal of pediatrics · 2012
    Randomized trial89 participantsVision Support forVitamin A
  221. Effect of short-term, high-dose retinol on dark adaptation in aging and early age-related maculopathy.
    Owsley C; McGwin G; Jackson GR; Heimburger DC; Piyathilake CJ; Klein R; White MF; Kallies K · Investigative ophthalmology & visual science · 2006
    Randomized trial104 participantsVision Support forVitamin A
  222. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledVision Support forZinc
  223. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2023
    Meta-analysis3,790 participants5 studies pooledVision Support forZinc
  224. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsVision Support forZinc
  225. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8.
    Age-Related Eye Disease Study Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2001
    Randomized trial3,640 participantsVision Support forZinc
  226. Effect of vitamin A and zinc supplementation on the nutriture of children in Northeast Thailand.
    Udomkesmalee E; Dhanamitta S; Sirisinha S; Charoenkiatkul S; Tuntipopipat S; Banjong O; Rojroongwasinkul N; Kramer TR; Smith JC · The American journal of clinical nutrition · 1992
    Randomized trial133 participantsVision Support forZinc