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Magnesium Oxide 375 mg

4.6
★ ★ ★ ★ ★
(148 ratings)
Magnesium 210 mg
Product Image
Score77
A very inexpensive oxide capsule offers basic magnesium exposure, with low absorption and a title-to-label dose discrepancy as major drawbacks.
How scoring works
Capsule
Quantity:240 Capsule(s) • (240 servings)
Goals:
General Health
Digestive Health
Energy
Cardiovascular Support

Score 77

A very inexpensive oxide capsule offers basic magnesium exposure, with low absorption and a title-to-label dose discrepancy as major drawbacks.
How scoring works
$10.99($0.04 per serving)
iHerb
$ 10.99
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Analysis

The ingredient data show 210 mg of elemental magnesium as oxide despite a 375 mg figure in the product title. That discrepancy should be checked on the current label before dosing decisions are made.

Magnesium oxide is inexpensive and may support bowel regularity, but relatively little is absorbed compared with citrate, glycinate, or malate. A one-capsule format and large count support convenience.

It fits budget-focused users who knowingly want oxide rather than those seeking a premium absorbed form. The low cost does not fully compensate for uncertain labeling and form quality.

Who is it for
  • Budget-focused adults
  • People intentionally choosing magnesium oxide
  • Users who want a one-capsule serving
Best for
  • Basic low-cost supplementation
  • Bowel-regularity support
  • Large-count convenience

Pros

  • Ingredient data disclose 210 mg elemental magnesium
  • One-capsule serving
  • Large bottle count
  • Very low serving cost

Cons

  • Oxide has low systemic absorption
  • Product title and supplied dose do not match
  • No uptake cofactor or premium processing
  • Digestive effects may dominate

Warnings

  • The magnesium oxide serving of supplemental magnesium may cause loose stools, cramping, or nausea; a smaller divided amount may be easier to tolerate.
  • Confirm the current label because the title and supplied ingredient data show different amounts.
  • 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.

Nutrient quality

73 High impact

Magnesium oxide has low systemic absorption despite its clear mineral content. The elemental amount is meaningful for daily supplementation, while the moderate amount is less aggressive than many oxide formulas, though digestive effects remain possible.

Ingredient transparency

81 Highest impact

The elemental amount and oxide form are clearly stated. Serving totals are apparent, but full directions and inactive ingredients are not supplied.

Customer satisfaction

63 Moderate impact

The supplied average rating is favorable. The moderate rating base offers some confidence but is not extensive, while complaint and firsthand experience details are unavailable.

Value for money

88 Highest impact

Formula quality provides partial support for the asking position. The serving value is reasonably competitive within the category.

Report analysis

Goals

General Health
Stress Resilience
General Health
Impact
High effect
A Goal FitB- Strength of SupportD+ CoverageB+ Formula Quality
Magnesium · 210 mg

Magnesium supports foundational energy metabolism, nerves, and muscle function at a meaningful elemental amount. Its general-health role is relevant but limited to one mineral pathway.

Magnesium oxide is clearly disclosed but has low systemic absorption compared with chelated forms. The simple formula avoids padding, yet poor form quality reduces its likely contribution despite the substantial label amount.

Study evidence
Magnesium Supportive 114 studies
Digestive Health
Digestive Health
Impact
High effect
A- Goal FitB- Strength of SupportD- CoverageA+ Formula Quality
Magnesium · 210 mg

Magnesium oxide can draw water into the bowel and may support occasional regularity. Its low absorption makes it less suitable for broader magnesium functions and may cause loose stools in sensitive users.

The disclosed elemental amount is substantial for the narrow motility pathway. The clean formula avoids padding but does not support digestion, the microbiome, or the gut barrier.

Study evidence
Magnesium Supportive 50 studies
Energy
Energy
Impact
High effect
B Goal FitC Strength of SupportD- CoverageA Formula Quality
Magnesium · 210 mg

Magnesium is required for ATP-dependent enzymes, and the 210 mg amount meets the stated energy threshold. Magnesium oxide provides focused metabolic and neuromuscular support rather than acute stimulation.

Magnesium oxide has poor systemic absorption, which limits its effective contribution. The single-mineral design is transparent and free from unrelated ingredients.

Study evidence
Magnesium Supportive 4 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
B Goal FitC- Strength of SupportF CoverageA Formula Quality
Magnesium · 210 mg

A meaningful elemental magnesium amount creates a clear link to vascular tone and normal rhythm. The single-mineral formula is transparent and easy to use.

Magnesium oxide has poor systemic absorption compared with citrate or bisglycinate, which limits the likely cardiovascular contribution. The product is narrow and does not cover other heart-health pathways.

Study evidence
Magnesium Supportive 123 studies
Stress Relief
Stress Relief
Impact
Moderate effect
B- Goal FitC- Strength of SupportD- CoverageB+ Formula Quality
Magnesium · 210 mg

The label supplies a useful elemental magnesium amount in a very simple formula. Magnesium has a foundational role in nervous-system regulation.

Magnesium oxide has poor systemic absorption and is more likely to affect the bowel than provide dependable calming support. A more absorbable chelate or citrate would better match the stress goal.

Study evidence
Magnesium Supportive 13 studies
Bone Health
Bone Health
Impact
Moderate effect
C Goal FitD Strength of SupportD- CoverageA- Formula Quality
Magnesium · 210 mg

Magnesium contributes to bone structure and vitamin D metabolism, giving the product basic skeletal relevance. A single mineral cannot provide comprehensive calcium transport or protein-matrix support.

The elemental amount is clearly disclosed and sits in a useful range. Magnesium oxide has poor absorption, which substantially reduces confidence in its practical bone contribution.

Study evidence
Magnesium Supportive 48 studies

Ingredients

IngredientAmount per serving
Magnesium (Magnesium Oxide)
 210 mg
Gluten Free Adults 18–50
Report overview
Magnesium (Magnesium Oxide) · 210 mg OverallScore54
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyC Value

Magnesium oxide provides a clearly stated therapeutic elemental amount but has low systemic absorption. No patented processing or added uptake cofactor improves the basic formula. Its extremely low cost partly offsets poor form quality.

View ingredientView products
Loading alternative details
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

Cal/Mag 500 mg/250 mg

NaturesPlus
<p>Chelated calcium and magnesium provide a focused, balanced mineral formula with strong form quality. 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>
85 Budget

Magnesium Bisglycinate Chelate

Healthy Origins
<p>TRAACS magnesium bisglycinate provides high-quality absorption quality, a useful elemental amount, and strong serving value in a clean powder. The supplied serving cost is not lower; it is included only because fewer than three eligible lower-cost choices from different brands are available.</p>
91 Budget

Krebs Magnesium Potassium Complex

Nature's Way
<p>Magnesium lysinate and malate provide favorable forms at a useful amount, with a modest potassium contribution. The supplied serving cost is not lower; it is included only because fewer than three eligible lower-cost choices from different brands are available.</p>
83 Budget

Magnesium Citrate Pure Powder

Best Naturals
<p>A well-aligned amount of magnesium citrate delivers useful absorption in a focused powder. The supplied serving cost is not lower; it is included only because fewer than three eligible lower-cost choices from different brands are available.</p>
84 Value

Magnesium Glycinate

NOW
<p>Magnesium glycinate is a well-absorbed form that is often gentle on digestion. Its stated magnesium form and dose may improve formulation value, although the supplied serving cost is not lower than the original.</p>
83 Value

Magnesium Citrate 420 mg

Nutricost
<p>A substantial amount of magnesium citrate offers useful absorption and a focused formula. Its stated magnesium form and dose may improve formulation value, although the supplied serving cost is not lower 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 and dose may improve formulation value, although the supplied serving cost is not lower 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. Magnesium status and magnesium therapy in critically ill patients: A systematic review.
    Fairley J; Glassford NJ; Zhang L; Bellomo R · Journal of critical care · 2016
    Systematic review34 studies pooledGeneral Health forMagnesium
  2. Hospital-Acquired Dysmagnesemia and In-Hospital Mortality.
    Cheungpasitporn W; Thongprayoon C; Chewcharat A; Petnak T; Mao MA; Davis PW; Bathini T; Vallabhajosyula S; Qureshi F; Erickson SB · Medical sciences (Basel, Switzerland) · 2024
    Cohort study26,020 participantsGeneral Health forMagnesium
  3. 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
  4. 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
  5. 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
  6. The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis.
    Leenders NHJ; Vermeulen EA; van Ballegooijen AJ; Hoekstra T; de Vries R; Beulens JW; Vervloet MG · Clinical nutrition (Edinburgh, Scotland) · 2021
    Meta-analysis348,059 participants33 studies pooledGeneral Health forMagnesium
  7. 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 pooledGeneral Health Cardiovascular Support forMagnesium
  8. Magpie Trial in the UK: methods and additional data for women and children at 2 years following pregnancy complicated by pre-eclampsia.
    Smyth RM; Spark P; Armstrong N; Duley L · BMC pregnancy and childbirth · 2009
    Randomized trial1,601 participantsGeneral Health forMagnesium
  9. 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
  10. Effects of oral magnesium therapy on exercise tolerance, exercise-induced chest pain, and quality of life in patients with coronary artery disease.
    Shechter M; Bairey Merz CN; Stuehlinger HG; Slany J; Pachinger O; Rabinowitz B · The American journal of cardiology · 2003
    Randomized trial187 participantsGeneral Health forMagnesium
  11. 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
  12. Lactobacillus casei rhamnosus Lcr35 in children with chronic constipation.
    Bu LN; Chang MH; Ni YH; Chen HL; Cheng CC · Pediatrics international : official journal of the Japan Pediatric Society · 2007
    Randomized trial45 participantsDigestive Health forMagnesium
  13. 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
  14. 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
  15. Magnesium-Rich Mineral Water Improves Stool Consistency and Bowel Habits in Healthy Subjects: A Randomized Controlled Trial.
    Yoneda H; Tomita T; Kitano T; Morishita D; Kodani M; Nishii N; Sei H; Eda H; Sato T; Kawai M; Yokoyama Y; Igeta M; Okugawa T; Fukui H; Shinzaki S · Neurogastroenterology and motility · 2026
    Randomized trial40 participantsDigestive Health forMagnesium
  16. Lactobacillus reuteri DSM 17938 and Magnesium Oxide in Children with Functional Chronic Constipation: A Double-Blind and Randomized Clinical Trial.
    Kubota M; Ito K; Tomimoto K; Kanazaki M; Tsukiyama K; Kubota A; Kuroki H; Fujita M; Vandenplas Y · Nutrients · 2020
    Randomized trial60 participantsDigestive Health forMagnesium
  17. Diagnosis of magnesium-induced diarrhea.
    Fine KD; Santa Ana CA; Fordtran JS · The New England journal of medicine · 1991
    Clinical trial19 participantsDigestive Health forMagnesium
  18. 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
  19. Effect of the laxative magnesium oxide on gastrointestinal functional recovery in fast-track colonic resection: a double-blind, placebo-controlled randomized study.
    Andersen J; Christensen H; Pachler JH; Hallin M; Thaysen HV; Kehlet H · Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2012
    Randomized trial49 participantsDigestive Health forMagnesium
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  34. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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