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Magnesium Chelate

4.8
★ ★ ★ ★ ★
(11312 ratings)
Magnesium 210 mg
Product Image
Score85
A practical, economical amino acid chelate offers reasonable absorption, though its generic form description limits quality verification.
How scoring works
Tablet
Quantity:270 Tablet(s) • (135 servings)
Goals:
Energy
General Health
Cardiovascular Support
Heart Health
Stress Relief
Testosterone Support

Score 85

A practical, economical amino acid chelate offers reasonable absorption, though its generic form description limits quality verification.
How scoring works
$12.54($0.09 per serving)
iHerb
$ 12.54
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Analysis

The serving provides 210 mg of elemental magnesium from an amino acid chelate. That form should offer better systemic potential than oxide, while the moderate amount suits daily use.

The large bottle and low serving cost make it practical for long-term supplementation. The label does not name the amino acid, chelation ratio, or a patented raw-material standard.

It fits users seeking a middle ground between basic citrate and specifically identified bisglycinate. People who want maximum form transparency should choose a product that names the chelate in full.

Who is it for
  • Adults seeking moderate magnesium support
  • Value-conscious long-term users
  • People wanting a chelated form
Best for
  • Everyday systemic magnesium intake
  • Low-cost chelate supplementation
  • Flexible two-tablet dosing

Pros

  • Provides 210 mg elemental magnesium
  • Uses an amino acid chelate
  • Large bottle supply
  • Very low serving cost

Cons

  • Specific amino acid is not named
  • No patented chelation standard
  • Requires two tablets
  • No added cofactor

Warnings

  • The 210 mg serving of supplemental magnesium may cause loose stools, cramping, or nausea; a smaller divided amount may be easier to tolerate.
  • Magnesium can reduce absorption of tetracycline or quinolone antibiotics; follow the prescriber or pharmacist’s spacing instructions.
  • Magnesium can interfere with levothyroxine absorption and should be separated according to medication guidance.
  • People with significantly reduced kidney function can accumulate magnesium and need clinician-guided use.

Nutrient quality

92 Highest impact

A magnesium amino acid chelate provides good absorption potential. The elemental amount is well aligned with routine supplementation, while the moderate amount avoids obvious excess.

Ingredient transparency

80 Highest impact

The elemental amount and generic chelate form are clear, though a specific ligand or patented source is not named. Serving totals are apparent, but full directions and inactive ingredients are not supplied.

Customer satisfaction

72 High impact

The supplied average rating is exceptionally strong. The exceptionally large rating base makes the average highly stable, while complaint and firsthand experience details are unavailable.

Value for money

96 Highest impact

Formula quality supports the asking position well. The serving value is highly competitive within the category.

Report analysis

Goals

Energy
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.

The single-mineral design has strong depth but covers no alertness or stress-resilience pathway. Its role is nutritional and deficiency focused rather than an immediate energy boost.

Study evidence
Magnesium Supportive 4 studies
General Health
Stress Resilience
General Health
Impact
Highest effect
A- Goal FitB+ Strength of SupportC- CoverageA Formula Quality
Magnesium · 210 mg

A magnesium amino acid chelate provides a well-aligned elemental amount for foundational support. The straightforward single-mineral design makes daily use easy to understand.

The precise chelate identity and reaction standard are not disclosed, leaving some uncertainty about absorption quality. Its benefit is focused on magnesium rather than comprehensive wellness coverage.

Study evidence
Magnesium Supportive 114 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
B Goal FitB+ Strength of SupportD+ CoverageA Formula Quality
Magnesium · 210 mg

A well-disclosed magnesium amount supports vascular tone and normal cardiac electrical function. The benefit remains focused rather than broad cardiovascular coverage.

The amino acid chelate suggests reasonable absorption, although the exact ligand and chelation standard are not named. A single-mineral design keeps the formula coherent and avoids unnecessary ingredients.

Study evidence
Magnesium Supportive 123 studies
Heart Health
Healthy Blood Pressure
Heart Health
Impact
High effect
B Goal FitB Strength of SupportD CoverageA- Formula Quality
Magnesium · 210 mg

A well-aligned magnesium amount provides focused support for vascular tone and normal cardiac rhythm. The amino acid chelate suggests reasonable absorption potential.

Missing ligand and processing details prevent full confidence in material quality. The lean product goes deep on one mineral pathway but does not offer broader cardiovascular coverage.

Study evidence
Magnesium Supportive 158 studies
Stress Relief
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 and relaxation support. The product remains limited to one pathway and cannot replace a broader calming or adaptogenic formula.

Clear elemental dosing and a chelated form support reasonable quality confidence, though no patented chelation standard is identified. The single-mineral design is focused and free from unnecessary active additions.

Study evidence
Magnesium Supportive 13 studies
Testosterone Support
Testosterone Support
Impact
High effect
C- Goal FitB Strength of SupportD CoverageA Formula Quality
Magnesium · 210 mg

Magnesium supports one nutritional pathway connected to healthy endocrine function. A focused magnesium supplement cannot provide broad testosterone support on its own.

The elemental amount is practical for routine supplementation. The generic amino acid chelate may absorb reasonably well, but missing ligand and chelation details limit certainty.

Study evidence
Magnesium Disputed 5 studies

Ingredients

IngredientAmount per serving
Magnesium (Magnesium Amino Acid Chelate)
 210 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Magnesium (Magnesium Amino Acid Chelate) · 210 mg OverallScore70
D Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB- Value

An amino acid chelate supplies a well-aligned elemental magnesium amount with reasonable absorption potential. The single-mineral design has no added uptake co-factors, and no patented chelation standard is identified. A very low serving cost supports good value despite the generic form description.

View ingredientView products
Loading alternative details
91 Performance

Krebs Magnesium Potassium Complex

Nature's Way
<p>Magnesium lysinate and malate provide favorable forms at a useful amount, with a modest potassium contribution. Compared with the original, its magnesium form, dose clarity, and focused design offer a stronger quality-oriented option.</p>
88 Performance

Magnesium Bisglycinate Powder

NOW
<p>Magnesium bisglycinate supplies a well-absorbed form at a practical, moderate amount. Compared with the original, its magnesium form, dose clarity, and focused design offer a stronger quality-oriented option.</p>
85 Performance

Magnesium Bisglycinate 200 mg

Natural Factors
<p>A focused magnesium bisglycinate powder uses a highly absorbable form at a moderate, practical amount. Compared with the original, its magnesium form, dose clarity, and focused design offer a stronger quality-oriented option.</p>
83 Budget

Magnesium Citrate Pure Powder

Best Naturals
<p>A well-aligned amount of magnesium citrate delivers useful absorption in a focused powder. Its lower supplied serving cost makes it a more economical magnesium option than the original.</p>
83 Budget

Magnesium Citrate 420 mg

Nutricost
<p>A substantial amount of magnesium citrate offers useful absorption and a focused formula. Its lower supplied serving cost makes it a more economical magnesium option than the original.</p>
85 Budget

Cal/Mag 500 mg/250 mg

NaturesPlus
<p>Chelated calcium and magnesium provide a focused, balanced mineral formula with strong form quality. Its lower supplied serving cost makes it a more economical magnesium option than the original.</p>
83 Value

Magnesium Citrate 200 mg

Best Naturals
<p>A substantial amount of magnesium citrate combines useful absorption with a focused single-active design. Its stated magnesium form, practical dose, and lower serving cost offer a stronger balance of quality and value than the original.</p>
84 Value

Potassium + Magnesium

Nutricost
<p>A meaningful magnesium citrate amount anchors a simple two-mineral electrolyte formula. Its stated magnesium form, practical dose, and lower serving cost offer a stronger balance of quality and value than the original.</p>
80 Value

Magnesium Caps 500 mg

Life Extension
<p>Citrate, succinate, and a named glycinate chelate strengthen a multi-form magnesium blend, while oxide lowers average absorption. Its stated magnesium form, practical dose, and lower serving cost offer a stronger balance of quality and value than the original.</p>
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  19. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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