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Zinc 30 mg

Nature's Life
4.8
★ ★ ★ ★ ★
(5887 ratings)
Zinc 30 mg
Copper 2 mg
Product Image
Score83
High-quality, low-cost zinc picolinate with copper balance and a long supply, but the copper total needs label confirmation.
How scoring works
Quantity:250 Capsule(s) • (250 servings)
Goals:
Testosterone Support
Immunity
General Health
Hair Health
Fitness
Vision Support
Bone Health
Skin Health

Score 83

High-quality, low-cost zinc picolinate with copper balance and a long supply, but the copper total needs label confirmation.
How scoring works
$24.19($0.09 per serving)
iHerb
$ 24.19
iHerb
$ 24.19
Vitacost
$ 24.19
Amazon
$ 24.19
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Analysis

Thirty milligrams of zinc picolinate provides a substantial, well-absorbed zinc dose. Copper citrate and gluconate are included to reduce the imbalance risk that can come with long-term zinc use.

The supplied data lists 2 mg copper under two forms, so it is unclear whether 2 mg is the total or each form contributes separately. Zinc at this level is better suited to a defined need than casual stacking with other supplements.

The 250-capsule bottle offers excellent continuity and low daily cost. It fits adults seeking focused zinc support who can confirm the copper total and monitor their combined intake.

Who is it for
  • Adults with a defined need for higher-dose zinc
  • Users seeking zinc with copper
  • People wanting a long one-capsule supply
Best for
  • Zinc supplementation
  • Immune nutrient support
  • Hair and skin nutrient coverage

Pros

  • Uses zinc picolinate
  • Includes copper
  • One capsule daily
  • Two hundred fifty servings

Cons

  • Zinc amount is high for casual long-term use
  • Copper entries appear duplicated
  • Not a broad multivitamin
  • May be excessive when stacked

Warnings

  • Long-term high zinc intake can cause nausea and disrupt copper status despite added copper
  • Zinc can reduce absorption of tetracycline or quinolone antibiotics when taken too close together
  • Verify whether the copper total is 2 mg or 4 mg before combining with other copper products

Nutrient quality

89 Highest impact

Zinc picolinate and copper citrate are useful forms, while copper gluconate is a more ordinary organic salt, and the 30 mg zinc amount is substantial and paired with copper, though the repeated copper entries blur the total. The zinc amount is below the adult upper limit but is high enough to make long-term mineral balance important, while zinc and copper form a coherent mineral-balance formula without mismatched additions.

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Ingredient transparency

73 High impact

Core amounts are listed, but repeated mineral forms make their totals ambiguous, and no proprietary blend hides the amount of a listed active ingredient. Serving count is supplied, but complete daily-use directions are not provided, while inactive ingredients and excipients are not included in the supplied label details.

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Customer satisfaction

75 High impact

The supplied average rating is strong, and extensive review volume makes the average rating more dependable. Specific review themes are unavailable, so repeated negatives and real-world fit remain uncertain.

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Value for money

95 Highest impact

Useful forms and meaningful amounts generally justify the product positioning, and the very low serving cost provides excellent practical value. The formula is focused and does not appear padded with low-value active ingredients, while the formula and serving value compare well with similar products.

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Report analysis

Goals

Testosterone Support
Testosterone Support
Impact
Highest effect
A- Goal FitA+ Strength of SupportC CoverageA+ Formula Quality
Zinc · 30 mg

Zinc picolinate supplies a foundational testosterone-related nutrient at a substantial amount. Copper is included to balance a common concern with sustained higher-dose zinc use.

The formula is fully disclosed and uses suitable mineral forms without unrelated actives. Benefits are most likely when zinc intake or status is low, so it is a focused nutrient option rather than broad hormone support.

Study evidence
Zinc Disputed 7 studies
Immunity
Immunity
Impact
Highest effect
A Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Zinc · 30 mg

Zinc picolinate supplies a well-absorbed amount that directly supports immune-cell development and communication. Copper is included to help maintain mineral balance during ongoing use.

The focused capsule provides strong systemic zinc support but does not offer the local throat contact of a zinc lozenge. Its narrow design gives useful depth without covering antioxidant or barrier pathways.

Study evidence
Zinc Supportive 73 studies
General Health
General Health
Impact
Highest effect
A- Goal FitA Strength of SupportC CoverageA+ Formula Quality
Zinc · 30 mg

Zinc picolinate supplies focused support for immune and enzyme functions in a well-absorbed form. Copper is included in a sensible proportion to the zinc amount.

The formula is transparent and streamlined, but it covers only a narrow part of general health. A 30 mg daily zinc amount is relatively high, so total zinc intake from other sources still matters during long-term use.

Study evidence
Zinc Supportive 60 studies
Hair Health
Hair Health
Impact
Highest effect
B+ Goal FitA Strength of SupportD+ CoverageA Formula Quality
Zinc · 30 mg

Zinc picolinate provides focused support for follicle cell division and may help when low zinc contributes to shedding. Copper accompanies the zinc to reduce the mineral-balance concern of a substantial daily dose.

The clearly disclosed minerals and well-absorbed zinc form make the contribution easy to assess. Support remains narrow because the formula does not provide structural proteins, vitamin D, iron, or other major hair pathways.

Study evidence
Copper Adverse 4 studies
Zinc Supportive 22 studies
Fitness
Fitness
Impact
High effect
C+ Goal FitA Strength of SupportD CoverageA+ Formula Quality

Zinc supports protein synthesis, recovery, and hormone function when intake or sweat losses create a gap. Zinc picolinate provides a well-absorbed form at a substantial amount.

Included copper improves long-term mineral balance at the higher zinc intake. The formula remains situational nutritional support rather than a direct strength or endurance enhancer.

Study evidence
Zinc Supportive 7 studies
Vision Support
Vision Support
Impact
High effect
C+ Goal FitA- Strength of SupportD CoverageA+ Formula Quality
Zinc · 30 mgCopper · 2 mg

Zinc supports retinal antioxidant enzymes, and copper helps maintain mineral balance during supplementation. Zinc and copper are included in established ocular nutrient frameworks, though this pair alone is incomplete.

The zinc amount is substantial and the copper amount meaningfully balances it. Zinc picolinate and organic copper salts are clearly identified with exact amounts.

Study evidence
Copper Supportive 7 studies
Zinc Supportive 39 studies

Ingredients

IngredientAmount per serving
Zinc (Zinc Picolinate)
 30 mg
Copper (Copper Citrate, Copper Gluconate)
 2 mg
Adults 18–50 Vegetarian
Report overview
Zinc (Zinc Picolinate) · 30 mg OverallScore99
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

zinc picolinate provides a well-absorbed form, while vegetarian capsules offer a practical delivery method. The 30 mg dose is appropriately balanced by included copper. Serving cost is highly economical for the delivered dose.

View ingredientView products
Copper (Copper Citrate, Copper Gluconate) · 2 mg OverallScore70
C+ Active Ingredient Quality & BioavailabilityC- Dose, Safety & Label TransparencyA+ Value

The label supplies copper from citrate and gluconate, combining a well-absorbed form with a more ordinary organic salt. The total listed copper is higher than the usual maintenance target but remains below the upper limit. The zinc-to-copper ratio falls just outside the preferred range, while the very low serving cost supports strong value.

View ingredientView products
Loading alternative details
87 Performance

Zinc Balance

Jarrow Formulas
The focused zinc-and-copper pairing uses meaningful amounts and a sensible mineral balance. Its clearer dose, sensible amount, or zinc-copper balance improves label confidence or long-term practicality compared with the original’s repeated copper entries.
87 Performance

Zinc Picolinate 25 mg

Thompson
Picolinate is a well-absorbed zinc form, and the amount is meaningful without crossing the usual adult upper limit. Its clearer dose, sensible amount, or zinc-copper balance improves label confidence or long-term practicality compared with the original’s repeated copper entries.
87 Performance

Zinc Picolinate 22 mg

Solgar
Picolinate offers strong absorption potential at a useful maintenance amount. Its clearer dose, sensible amount, or zinc-copper balance improves label confidence or long-term practicality compared with the original’s repeated copper entries.
84 Budget

Zinc Gluconate 30 mg

Swanson
Gluconate provides reasonable absorption at a substantial zinc amount. It delivers a comparable zinc amount at lower recurring cost, although the lack of copper makes long-term mineral balance less complete than the original.
85 Budget

Zinc 30 mg

Nature Made
Zinc gluconate provides a meaningful amount in a focused, very inexpensive tablet. It delivers a comparable zinc amount at lower recurring cost, although the lack of copper makes long-term mineral balance less complete than the original.
85 Budget

Zinc Chelate 30 mg

Nature's Way
Zinc bisglycinate provides a well-absorbed form at a robust daily amount. It delivers a comparable zinc amount at lower recurring cost, although the lack of copper makes long-term mineral balance less complete than the original.
86 Value

L-OptiZinc 30 mg

NOW
Zinc monomethionine provides excellent absorption potential at a substantial amount. It combines an absorbable zinc form with strong serving value, though copper balance varies and should guide sustained use.
85 Value

Chelated Zinc 30 mg

Swanson
A branded glycinate chelate offers excellent absorption potential at a substantial amount. It combines an absorbable zinc form with strong serving value, though copper balance varies and should guide sustained use.
85 Value

OptiZinc

Source Naturals
Zinc methionine provides a well-absorbed chelated form at a robust amount, and added copper offers partial balance. It combines an absorbable zinc form with strong serving value, though copper balance varies and should guide sustained use.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. Association between composite dietary antioxidant index and handgrip strength in American adults: Data from National Health and Nutrition Examination Survey (NHANES, 2011-2014).
    Wu D; Wang H; Wang W; Qing C; Zhang W; Gao X; Shi Y; Li Y; Zheng Z · Frontiers in nutrition · 2024
    Cross-sectional study6,019 participantsFitness forZinc
  12. Serum essential elements and muscle health in Chinese adults: a community-based study.
    Ye H; Wang D; Liu S; Yao N; Gui Z; Huang Z; Zeng Y; Liu L; Wan H; Shen J · Nutrition & metabolism · 2025
    Cross-sectional study5,389 participantsFitness forZinc
  13. [Survey of the dietary status and physical activity level and fitness of college freshmen in Chengdu].
    Han H; Lv X; Wang D · Wei sheng yan jiu = Journal of hygiene research · 2010
    Cross-sectional study1,200 participantsFitness forZinc
  14. A comprehensive review of the physiology and evidence base to guide the use of ergogenic and medical supplements for enhanced cycling performance.
    Rowland A; Edwards S; Prieto-Bellver G; Menz B; Rowland A; Cornelisse E; Karapetis CS; Wallen MP; Hopkins AM · Journal of the International Society of Sports Nutrition · 2026
    Narrative reviewFitness forZinc
  15. Minerals and Sarcopenia in Older Adults: An Updated Systematic Review.
    van Dronkelaar C; Fultinga M; Hummel M; Kruizenga H; Weijs PJM; Tieland M · Journal of the American Medical Directors Association · 2023
    Systematic review45 studies pooledFitness forZinc
  16. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  17. 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 participantsGeneral Health forZinc
  18. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  19. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  20. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  21. 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
    Case series4 participantsHair Health forCopper
  22. Trace element levels in alopecia areata.
    Bhat YJ; Manzoor S; Khan AR; Qayoom S · Indian journal of dermatology, venereology and leprology · 2009
    Case-control study100 participantsHair Health forCopper
  23. 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
  24. 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
    In vitro / ex vivo studyHair Health forCopper
  25. 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
  26. 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
  27. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    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
  28. 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
  29. 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
  30. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    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
  31. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  32. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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 forZinc
  45. 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
  46. 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
  47. 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
  48. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  49. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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
  59. 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