Product Image

Magnesium Chelate

4.8
★ ★ ★ ★ ★
(11313 ratings)
Phosphorus 52 mg
Magnesium 210 mg
Product Image
Score86
A focused, well-priced chelated magnesium product with a practical amount and clean label. The exact chelate is not identified, but the core formula remains easy to assess.
How scoring works
Tablet
Quantity:90 Tablet(s) • (45 servings)
Goals:
General Health
Energy
Cardiovascular Support
Heart Health
Bone Health
Stress Relief
Testosterone Support

Score 86

A focused, well-priced chelated magnesium product with a practical amount and clean label. The exact chelate is not identified, but the core formula remains easy to assess.
How scoring works
$5.50($0.12 per serving)
iHerb
$ 5.50
Report prices

Analysis

Magnesium amino acid chelate supplies a practical amount with reasonable absorption potential. The modest calcium and phosphorus contributions do not compete heavily with magnesium, although they add little for a focused bone-support goal.

The concise formula fits general, energy, cardiovascular, stress, and fitness-related mineral support. It is less specifically aligned with digestive or testosterone goals, where benefits mainly depend on correcting low magnesium intake.

Elemental amounts are straightforward and no proprietary blend obscures the serving. Low serving cost strengthens the case, while naming the exact amino acid ligand would make the form quality easier to verify.

Who is it for
  • Adults seeking an economical chelated magnesium
  • People who prefer a concise mineral formula
  • Users wanting moderate rather than very high magnesium
Best for
  • General magnesium support
  • Energy and stress-related mineral coverage
  • Value-focused daily use

Pros

  • Uses an amino acid chelate
  • Clearly discloses elemental amounts
  • Strong serving value

Cons

  • Does not name the chelating amino acid
  • Calcium and phosphorus amounts are incidental
  • Two-tablet serving may be less convenient than one capsule

Warnings

  • Magnesium may still cause loose stools in sensitive users despite the moderate amount.
  • Kidney impairment can reduce magnesium clearance and make supplementation unsafe without guidance.
  • Magnesium can interfere with levothyroxine and tetracycline or quinolone antibiotics unless doses are separated.

Nutrient quality

90 Highest impact

A useful magnesium amount and chelated delivery support focused mineral quality. Limited chelate detail and small companion-mineral amounts are the main constraints.

Ingredient transparency

85 Highest impact

Every listed mineral has a specific amount and no proprietary blend hides the formula. Missing exact chelate identity, complete directions, and non-active ingredients leave modest gaps.

Customer satisfaction

73 High impact

The supplied average is very strong and supported by extensive response volume. No comment-level evidence is available to assess repeated complaints or alignment with the intended use.

Value for money

94 Highest impact

A useful chelated magnesium amount and low serving cost support strong value. Limited chelate detail is a modest trade-off rather than a major value problem.

Report analysis

Goals

Impact
Highest effect
A- Goal FitA- Strength of SupportC- CoverageA Formula Quality
Magnesium · 210 mg

A magnesium amino acid chelate supplies a useful elemental amount for foundational mineral support. The low calcium contribution is unlikely to meaningfully compete with the main mineral.

The exact chelate identity and reaction standard are not provided, leaving some uncertainty about form quality. The formula is focused on magnesium rather than broad daily nutrition.

Study evidence
Magnesium Supportive 114 studies
Energy
Impact
Highest effect
A- Goal FitA- Strength of SupportC- CoverageA- Formula Quality
Magnesium · 210 mg

A meaningful magnesium amount supports ATP-dependent enzymes and may help when low magnesium status contributes to fatigue. The amino-acid chelate offers reasonable absorption potential, although its ligand is not named.

Small calcium and phosphorus amounts add little energy support but do not overwhelm the main mineral. Its role is nutritional and deficiency focused rather than an immediate energy boost.

Study evidence
Magnesium Supportive 4 studies
Cardiovascular Support
Impact
High effect
B Goal FitB+ Strength of SupportD+ CoverageB+ Formula Quality
Magnesium · 210 mg

Amino acid-chelated magnesium provides focused support for vascular relaxation and normal heart rhythm. Cardiovascular relevance is meaningful but limited to a single mineral pathway.

The elemental amount is practical and fully disclosed, while the generic chelate gives less form certainty than a named ligand. Small calcium and phosphorus amounts add little cardiovascular value but do not overwhelm the magnesium.

Study evidence
Magnesium Supportive 123 studies
Impact
High effect
B Goal FitB Strength of SupportD CoverageB+ Formula Quality
Magnesium · 210 mg

A useful elemental magnesium amount gives the formula a credible link to vascular tone and normal cardiac rhythm. The amino acid chelate should offer better potential than a basic oxide form.

The unnamed ligand and absent chelation standard keep absorption quality uncertain. The product remains a focused mineral option rather than a broad heart formula.

Study evidence
Magnesium Supportive 158 studies
Bone Health
Impact
High effect
C+ Goal FitC+ Strength of SupportC- CoverageB+ Formula Quality
Phosphorus · 52 mgMagnesium · 210 mgCalcium · 67 mg

Magnesium with smaller calcium and phosphorus amounts supports several components of bone mineral structure. All three minerals have established skeletal roles, although the calcium and phosphorus contributions are small.

The formula covers three structural minerals but omits D3, vitamin K, boron, and protein-matrix support. The mineral combination is complementary and logically focused on skeletal structure.

Study evidence
Calcium Supportive 144 studies
Magnesium Supportive 48 studies
Phosphorus Supportive 44 studies
Stress Relief
Impact
High effect
C+ Goal FitB Strength of SupportD CoverageB+ Formula Quality
Magnesium · 210 mg

Magnesium amino acid chelate provides a meaningful amount of foundational nervous-system support with reasonable absorption potential. A small calcium addition does not materially strengthen stress relief but is unlikely to compete strongly with magnesium.

The elemental amount and general form are clear, although no patented or fully reacted chelation standard is named. The concise design remains easy to assess and avoids unnecessary active ingredients.

Study evidence
Magnesium Supportive 13 studies

Ingredients

IngredientAmount per serving
Calcium (Dicalcium Phosphate Dihydrate)
67 mg
Phosphorus (Dicalcium Phosphate Dihydrate)
52 mg
Magnesium (Magnesium Amino Acid Chelate)
210 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
B Active Ingredient Quality & BioavailabilityC- Dose, Safety & Label TransparencyA+ Value

Dicalcium phosphate is a reliable mineral source, and the label clearly states its elemental phosphorus contribution. The phosphorus amount is low for targeted bone support and appears incidental to the magnesium-focused formula. A two-tablet serving is practical, and the cost per serving is favorable.

D Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB- Value

An amino acid chelate supplies a well-aligned elemental amount with reasonable absorption potential. The small calcium amount stays well below a competitive ratio, although no patented or fully reacted chelation standard is stated. A low serving cost supports good value despite limited form detail.

Loading alternative details
Report alternatives

Sources

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

  1. Phosphate Metabolism in Health and Disease.
    Peacock M · Calcified tissue international · 2021
    Narrative reviewBone Health forPhosphorus
  2. Association between phosphorus intake and bone health in the NHANES population.
    Lee AW; Cho SS · Nutrition journal · 2016
    Cross-sectional studyBone Health forPhosphorus
  3. Association between serum phosphorus levels and pelvic bone mineral density in U.S. adults aged 18-59 years.
    Jiang T; Pan Y; Xu J; Ge J; Ji S; Li T; Zhang Y · BMC musculoskeletal disorders · 2025
    Cross-sectional study5,589 participantsBone Health forPhosphorus
  4. The effect of food, vitamin, or mineral supplements on chronic constipation in adults: A systematic review and meta-analysis of randomized controlled trials.
    van der Schoot A; Creedon A; Whelan K; Dimidi E · Neurogastroenterology and motility · 2023
    Meta-analysis787 participants8 studies pooledDigestive Health forMagnesium
  5. Diagnosis of magnesium-induced diarrhea.
    Fine KD; Santa Ana CA; Fordtran JS · The New England journal of medicine · 1991
    Clinical trial19 participantsDigestive Health forMagnesium
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  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. Dairy product consumption, eating habits, sedentary behaviour and physical activity association with bone mineral density among adolescent boys: a cross-sectional observational study.
    Kopiczko A; Czapla M; Juárez-Vela R; Ross C; Uchmanowicz B · BMC pediatrics · 2024
    Cross-sectional study115 participantsBone Health forPhosphorus
  17. Burosumab Improved Histomorphometric Measures of Osteomalacia in Adults with X-Linked Hypophosphatemia: A Phase 3, Single-Arm, International Trial.
    Insogna KL; Rauch F; Kamenický P; Ito N; Kubota T; Nakamura A; Zhang L; Mealiffe M; San Martin J; Portale AA · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2020
    Single-arm trial14 participantsBone Health forPhosphorus
  18. Early high calcium and phosphorus intake by parenteral nutrition prevents short-term bone strength decline in preterm infants.
    Pereira-da-Silva L; Costa A; Pereira L; Filipe A; Virella D; Leal E; Moreira A; Rosa M; Mendes L; Serelha M · Journal of pediatric gastroenterology and nutrition · 2011
    Randomized trialBone Health forPhosphorus
  19. Expert consensus on clinical management of metabolic bone disease of prematurity (2021).
    Yan-Mei C; Xin-Zhu L; Rong Z; Xi-Hong L; Xiao-Mei T; Ping-Yang C; Zhi-Chun F; Nutritional Committee of Neonatology Branch of Chinese Medical Doctor Association; Neonatal Nutrition and Health Management Group, Professional Committee of Child Health, Chinese Medical Doctor Association; Editorial Committee of Chinese Journal of Contemporary Pediatrics. · Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2021
    Guideline / consensusBone Health forPhosphorus
  20. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies.
    Del Gobbo LC; Imamura F; Wu JH; de Oliveira Otto MC; Chiuve SE; Mozaffarian D · The American journal of clinical nutrition · 2013
    Meta-analysis313,041 participants16 studies pooledCardiovascular Support forMagnesium
  21. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies.
    Qu X; Jin F; Hao Y; Li H; Tang T; Wang H; Yan W; Dai K · PloS one · 2013
    Meta-analysis532,979 participants19 studies pooledCardiovascular Support forMagnesium
  22. Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies.
    Zhao L; Hu M; Yang L; Xu H; Song W; Qian Y; Zhao M · Journal of cardiovascular pharmacology · 2020
    Meta-analysis544,581 participants18 studies pooledCardiovascular Support Heart Health forMagnesium
  23. Comparative Efficacy of Nutraceuticals on Endothelial Function: A Systematic Review and Network Meta-Analysis.
    Norouzzadeh M; Rashedi MH; Mahdavi-Mazdeh G; Kosari A; Shahinfar H · Current atherosclerosis reports · 2026
    Meta-analysisCardiovascular Support Heart Health forMagnesium
  24. Serum magnesium, mortality, and cardiovascular disease in chronic kidney disease and end-stage renal disease patients: a systematic review and meta-analysis.
    Xiong J; He T; Wang M; Nie L; Zhang Y; Wang Y; Huang Y; Feng B; Zhang J; Zhao J · Journal of nephrology · 2020
    Meta-analysis200,934 participants20 studies pooledCardiovascular Support forMagnesium
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
    Randomized trial80 participantsEnergy forMagnesium
  31. Total magnesium intake and risk of frailty in older women.
    Struijk EA; Fung TT; Bischoff-Ferrari HA; Willett WC; Lopez-Garcia E · Journal of cachexia, sarcopenia and muscle · 2024
    Cohort study81,524 participantsEnergy forMagnesium
  32. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  33. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  34. Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
    De Oliveira GS; Castro-Alves LJ; Khan JH; McCarthy RJ · Anesthesiology · 2013
    Meta-analysis1,257 participants20 studies pooledGeneral Health forMagnesium
  35. Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
    Woods KL; Fletcher S · Lancet (London, England) · 1994
    Randomized trial2,316 participantsGeneral Health forMagnesium
  36. Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
    Gu WJ; Duan XJ; Liu XZ; Cen Y; Tao LY; Lyu J; Yin HY · British journal of anaesthesia · 2023
    Cohort study10,999 participantsGeneral Health forMagnesium
  37. Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
    Li L; Streja E; Rhee CM; Mehrotra R; Soohoo M; Brunelli SM; Kovesdy CP; Kalantar-Zadeh K · American journal of kidney diseases : the official journal of the National Kidney Foundation · 2016
    Cohort study9,359 participantsGeneral Health forMagnesium
  38. The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
    Jaripur M; Ghasemi-Tehrani H; Askari G; Gholizadeh-Moghaddam M; Clark CCT; Rouhani MH · Reproductive biology and endocrinology : RB&E · 2022
    Randomized trial64 participantsGeneral Health forMagnesium
  39. Effects of magnesium supplementation on improving hyperglycemia, hypercholesterolemia, and hypertension in type 2 diabetes: A pooled analysis of 24 randomized controlled trials.
    Xu L; Li X; Wang X; Xu M · Frontiers in nutrition · 2023
    Meta-analysis1,325 participants24 studies pooledHeart Health forMagnesium
  40. The effect of lowering blood pressure by magnesium supplementation in diabetic hypertensive adults with low serum magnesium levels: a randomized, double-blind, placebo-controlled clinical trial.
    Guerrero-Romero F; Rodríguez-Morán M · Journal of human hypertension · 2009
    Randomized trial82 participantsHeart Health forMagnesium
  41. Positive effects of magnesium supplementation in metabolic syndrome.
    Kisters S; Kisters K; Werner T; Vormann J; Tokmak F; Westhoff T; Gröber U; Predel HG; Reuter H · International journal of clinical pharmacology and therapeutics · 2024
    Randomized trial54 participantsHeart Health forMagnesium
  42. Role of magnesium supplementation in the treatment of depression: A randomized clinical trial.
    Tarleton EK; Littenberg B; MacLean CD; Kennedy AG; Daley C · PloS one · 2017
    Randomized trial126 participantsStress Relief forMagnesium
  43. Effects of Intravenous Esketamine or Magnesium Sulfate on Early Postoperative Negative Emotions and Pain in Patients Undergoing Endoscopic Sinus Surgery: A Randomized Controlled Trial.
    Wang L; Zhou J; Liu Q; Qian K; Wang L; Xie C · Therapeutics and clinical risk management · 2026
    Randomized trial137 participantsStress Relief forMagnesium
  44. Effect of short-term magnesium supplementation on anxiety, depression and sleep quality in patients after open-heart surgery.
    Saba S; Faizi F; Sepandi M; Nehrir B · Magnesium research · 2022
    Non-randomized trial60 participantsStress Relief forMagnesium
  45. Effects of dry needling compared to magnesium infiltration in trigger points for patients with myofascial pain syndrome: a randomized controlled study in Tunisia.
    Dhouibi J; Moncer R; Kalbousi N; Gaddour M; Laayouni S; Ouanes W; Kacem B; Jemni S · Korean journal of family medicine · 2026
    Randomized trial45 participantsStress Relief forMagnesium
  46. Effect of magnesium and vitamin B6 supplementation on mental health and quality of life in stressed healthy adults: Post-hoc analysis of a randomised controlled trial.
    Noah L; Dye L; Bois De Fer B; Mazur A; Pickering G; Pouteau E · Stress and health : journal of the International Society for the Investigation of Stress · 2021
    Randomized trialStress Relief forMagnesium
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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