Product Image

Magnesium 200 mg

4.8
★ ★ ★ ★ ★
(4868 ratings)
Magnesium 200 mg
Product Image
Score81
A convenient mixed-form capsule includes some chelated magnesium but also weaker oxide. Unknown source proportions limit confidence in absorbed delivery.
How scoring works
Capsule
Quantity:100 VegCap(s) • (100 servings)
Goals:
General Health
Heart Health
Stress Relief
Energy
Cardiovascular Support
Bone Health

Score 81

A convenient mixed-form capsule includes some chelated magnesium but also weaker oxide. Unknown source proportions limit confidence in absorbed delivery.
How scoring works
$12.69($0.12 per serving)
iHerb
$ 12.69
Vitacost
$ 12.69
Pure Formulas
$ 12.69
Vitacost
$ 12.69
Report prices

Analysis

The formula pairs an amino acid chelate complex with magnesium oxide for a total of 200 mg. The chelated portion may support absorption, while oxide lowers confidence in the blend’s systemic quality.

The label does not show the amount contributed by each source or identify a fully reacted chelation standard. That gap matters because a small chelated share would leave most of the serving dependent on oxide.

A single capsule and focused ingredient list make daily use simple. The product is serviceable for general intake but less dependable than a formula built entirely around a disclosed chelate.

Who is it for
  • Adults wanting a low-burden magnesium capsule
  • People comfortable with a mixed chelate-and-oxide formula
Best for
  • Basic daily magnesium support
  • A simple one-capsule routine

Pros

  • Includes an amino acid chelate
  • Useful 200 mg amount
  • Convenient single-capsule serving

Cons

  • Also relies on magnesium oxide
  • The form split is not disclosed
  • No verified chelation standard is identified

Warnings

  • The oxide portion may cause loose stools or abdominal discomfort.
  • Magnesium can bind tetracycline or quinolone antibiotics and oral bisphosphonates, so these medicines should be taken several hours apart.
  • Impaired kidney function can reduce magnesium clearance, making a large supplemental amount less appropriate without clinical guidance.

Nutrient quality

83 Highest impact

An amino acid chelate may improve absorption, but the included oxide lowers overall form quality. The magnesium amount reaches a useful supplemental level, though the form split is not stated.

Ingredient transparency

82 Highest impact

The total elemental magnesium amount is disclosed. The chelate complex and oxide are named, but their individual shares are missing.

Customer satisfaction

71 High impact

The aggregate rating is strong and the available feedback volume gives it useful support. No specific review comments are supplied to assess recurring benefits or complaints.

Value for money

87 Highest impact

The low routine cost and useful dose offer good value despite mixed form quality. No low-value active extras are present.

Report analysis

Goals

General Health
Stress Resilience
General Health
Impact
Highest effect
A- Goal FitB Strength of SupportC CoverageA Formula Quality
Magnesium · 200 mg

Magnesium is a foundational mineral with broad roles in energy metabolism, nerve function, and muscle function. The elemental amount is well suited to daily supplementation.

An amino acid chelate may improve uptake, but inclusion of magnesium oxide reduces confidence in overall absorption. The focused formula remains logically constructed and easy to assess.

Study evidence
Magnesium Supportive 114 studies
Heart Health
Healthy Blood Pressure
Heart Health
Impact
High effect
B+ Goal FitB- Strength of SupportC- CoverageA+ Formula Quality
Magnesium · 200 mg

Magnesium directly supports vascular tone and normal cardiac electrical function. Its cardiovascular relevance is well established, especially when intake is inadequate.

The elemental amount reaches a meaningful supplemental range. A chelate may help absorption, but oxide and undisclosed proportions lower form confidence.

Study evidence
Magnesium Supportive 158 studies
Stress Relief
Stress Relief
Impact
High effect
B+ Goal FitB- Strength of SupportD+ CoverageA+ Formula Quality
Magnesium · 200 mg

Magnesium at 200 mg provides direct foundational support for normal nervous-system regulation and may help when low intake contributes to tension. Amino-acid chelate may improve uptake, but the same serving also includes lower-absorption oxide.

The single-mineral design gives this pathway useful depth but does not add an adaptogen or direct calming amino acid. Digestive tolerance and practical benefit will depend heavily on the magnesium form.

Study evidence
Magnesium Supportive 13 studies
Energy
Energy
Impact
High effect
B- Goal FitB Strength of SupportC CoverageA- Formula Quality
Magnesium · 200 mg

A clearly stated 200 mg magnesium amount reaches the preferred metabolic-support threshold. An amino acid chelate may improve absorption, but the included oxide makes the usable share uncertain.

The single-mineral design is focused and avoids decorative ingredients. Its energy role is limited to magnesium-dependent metabolism rather than alertness, fuel supply, or stress resilience.

Study evidence
Magnesium Supportive 4 studies
Cardiovascular Support
Cardiovascular Support
Impact
High effect
B Goal FitC+ Strength of SupportC- CoverageA- Formula Quality
Magnesium · 200 mg

The 200 mg magnesium amount may support normal vascular tone and heart rhythm when intake is low. The blend includes an amino acid chelate but also magnesium oxide, which reduces expected absorption quality.

The single-capsule formula is focused and free of unrelated actives. Coverage remains limited to one foundational mineral pathway.

Study evidence
Magnesium Supportive 123 studies
Bone Health
Bone Health
Impact
High effect
C+ Goal FitB- Strength of SupportD CoverageB Formula Quality
Magnesium · 200 mg

A meaningful magnesium amount provides focused support for one component of bone nutrition. No calcium-regulating vitamins or matrix cofactors extend that support.

The chelate improves the form profile, while the oxide portion is a weaker choice. The short formula avoids unrelated padding despite some redundancy between magnesium sources.

Study evidence
Magnesium Supportive 48 studies
Digestive Health
Digestive Health
Impact
Moderate effect
D Goal FitB- Strength of SupportF CoverageA Formula Quality
Magnesium · 200 mg

A meaningful magnesium amount may support stool regularity in people whose intake is low or who respond to magnesium's osmotic effect. An amino-acid chelate may absorb well, but the included oxide makes the bowel effect and form balance less predictable.

The product covers only a narrow motility-related pathway and provides no fiber, enzymes, probiotics, or mucosal support. Its digestive value is situational rather than comprehensive.

Study evidence
Magnesium Supportive 50 studies

Ingredients

IngredientAmount per serving
Magnesium (Magnesium Amino Acid Chelate Complex, Magnesium Oxide)
 200 mg
Adults 18–50
Report overview
Magnesium (Magnesium Amino Acid Chelate Complex, Magnesium Oxide) · 200 mg OverallScore63
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyC+ Value

A clearly stated elemental amount meets the preferred supplemental range at a low serving cost. The amino acid chelate may improve absorption, but the included oxide makes the form quality uncertain. No patented or fully reacted chelation standard confirms how much of the serving uses the better form.

View ingredientView products
Loading alternative details
91 Performance

Krebs Magnesium Potassium Complex

Nature's Way
Magnesium lysinate and malate provide favorable forms at a useful amount, with a modest potassium contribution. The clearly identified form provides a more predictable magnesium option than the original’s mixed or less fully described formulation. The formula remains focused rather than comprehensive.
88 Performance

Magnesium Bisglycinate Powder

NOW
Magnesium bisglycinate supplies a well-absorbed form at a practical amount in an adjustable powder. The clearly identified form provides a more predictable magnesium option than the original’s mixed or less fully described formulation. The single-mineral design does not address needs beyond magnesium.
85 Performance

Magnesium Bisglycinate 200 mg

Natural Factors
Magnesium bisglycinate provides a highly absorbable form at a moderate amount suited to routine use. The clearly identified form provides a more predictable magnesium option than the original’s mixed or less fully described formulation. The focused formula offers no additional electrolyte or relaxation ingredients.
83 Budget

Magnesium Citrate Pure Powder

Best Naturals
Magnesium citrate in an adjustable powder provides useful absorption with a clearly stated amount. Its lower serving cost improves affordability, while citrate may loosen stools in sensitive users.
80 Budget

Magnesium Caps 500 mg

Life Extension
Citrate, succinate, and named glycinate broaden the magnesium forms in a very economical capsule. Its lower serving cost improves affordability, while the oxide portion lowers average absorption, and the large amount may cause diarrhea or cramping.
84 Budget

Potassium + Magnesium

Nutricost
Magnesium citrate with a modest potassium addition creates a simple two-mineral electrolyte formula. Its lower serving cost improves affordability, while potassium is only a supporting amount, and citrate may loosen stools in sensitive users.
80 Value

Magnesium Bisglycinate Chelate

Healthy Origins
TRAACS magnesium bisglycinate combines premium form quality, a useful elemental amount, and a clean powder format. The serving costs more, so the value advantage depends on prioritizing form quality. The formula is narrow, and supplied customer satisfaction is less convincing than its ingredient quality.
83 Value

Magnesium Citrate 420 mg

Nutricost
A substantial magnesium citrate amount offers useful absorption in a focused, economical formula. The lower serving cost strengthens quality-adjusted value. The higher amount may loosen stools or cause abdominal discomfort in sensitive users.
82 Value

Magnesium Citrate 200 mg

The Vitamin Shoppe
A moderate magnesium citrate amount provides practical daily supplementation in a simple tablet. The lower serving cost strengthens quality-adjusted value. Tablet excipients and complete directions are not supplied, and citrate may affect digestive tolerance.
Report alternatives

Sources

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

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