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Magnesium Citrate

4.8
★ ★ ★ ★ ★
(25082 ratings)
Magnesium 420 mg
Product Image
Score83
A strong-value, larger supply of clearly dosed magnesium citrate with a manageable but real laxative trade-off.
How scoring works
Tablet
Quantity:120 Tablet(s) • (60 servings)
Goals:
Digestive Health
General Health
Cardiovascular Support
Heart Health
Fitness
Energy
Stress Relief
Bone Health

Score 83

A strong-value, larger supply of clearly dosed magnesium citrate with a manageable but real laxative trade-off.
How scoring works

Also available as

2 options
60 servings Magnesium 420 mg • 60 Tablet(s) • 30 servings $6.03 ($0.20 per serving) 60 servings Magnesium 420 mg • 60 Tablet(s) • 30 servings $7.72 ($0.25 per serving)
$13.90($0.23 per serving)
iHerb
$ 13.90
Walmart
$ 18.78
iHerb
$ 13.90
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Analysis

Magnesium citrate offers moderate absorption for normal muscle, nerve, and energy functions. The clearly stated amount also gives it direct relevance for people using citrate for bowel regularity.

A larger bottle reduces reorder frequency and makes this size practical for consistent use. The two-tablet serving can be divided, which may help users manage digestive sensitivity.

Value compares well with other magnesium products in the supplied collection. The formula remains intentionally narrow and does not include vitamin D, calcium, or other goal-specific additions.

Who is it for
  • Regular magnesium citrate users
  • Adults wanting a larger bottle for ongoing use
Best for
  • Long-term citrate supplementation
  • Supporting magnesium intake and bowel regularity

Pros

  • Useful citrate form
  • Transparent elemental amount
  • Large bottle
  • Competitive serving value

Cons

  • May loosen stools at the full serving
  • No supportive vitamins or minerals
  • Two tablets required per serving

Warnings

  • The 420 mg citrate serving can cause diarrhea or abdominal cramping, especially if taken all at once.
  • People with impaired kidney function may not clear supplemental magnesium safely.
  • Magnesium can reduce absorption of some antibiotics and thyroid medicine, so follow the prescribed spacing instructions.

Nutrient quality

83 Highest impact

Magnesium citrate offers favorable absorption and a meaningful amount. The substantial serving can have dose-limiting digestive effects.

Ingredient transparency

86 Highest impact

The active form and amount are clear without a hidden blend. Full directions and non-active ingredients are not available in the supplied facts.

Customer satisfaction

73 High impact

The aggregate satisfaction metric is strong and supported by a useful volume of ratings. Specific firsthand feedback is absent, so recurring complaints and purpose fit cannot be assessed.

Value for money

90 Highest impact

Good form quality and a simple formula support value. Serving economics remain competitive, though cheaper magnesium products exist in less absorbable forms.

Report analysis

Goals

Digestive Health
Digestive Health
Impact
Highest effect
A Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Magnesium · 420 mg

Magnesium citrate directly supports intestinal motility and occasional stool softening. Its osmotic action and role in smooth-muscle function provide strong evidence for short-term regularity support.

The 420 mg amount is substantial and likely sufficient to affect bowel regularity. The label clearly identifies magnesium citrate and its exact amount without a proprietary blend. A 420 mg magnesium citrate serving may cause diarrhea, urgency, or abdominal cramping in sensitive users.

Study evidence
Magnesium Supportive 50 studies
General Health
General Health
Impact
Highest effect
A Goal FitB+ Strength of SupportC- CoverageA Formula Quality
Magnesium · 420 mg

Magnesium citrate provides focused support for muscle, nerve, and energy metabolism. The clearly disclosed 420 mg amount is substantial, and citrate has reasonable absorption.

The simple formula offers depth for magnesium support but does not address other common nutritional gaps. A 420 mg supplemental amount may cause loose stools or abdominal cramping in sensitive users.

Study evidence
Magnesium Supportive 114 studies
Cardiovascular Support
Cardiovascular Support
Impact
Highest effect
A- Goal FitA- Strength of SupportC- CoverageA+ Formula Quality
Magnesium · 420 mg

Magnesium citrate supports vascular relaxation, blood-pressure regulation, and steady heart rhythm. Its cardiovascular role is strongest when magnesium intake or status is inadequate.

The substantial elemental amount and clearly named form provide focused support. Citrate is reasonably absorbed, although the larger serving may cause loose stools or cramping in sensitive users.

Study evidence
Magnesium Supportive 123 studies
Heart Health
Heart Health
Impact
Highest effect
B Goal FitA Strength of SupportC- CoverageA Formula Quality
Magnesium · 420 mg

A clearly disclosed 420 mg magnesium citrate serving provides substantial foundational support for heart rhythm and vascular tone. The organic citrate form has good absorption potential compared with oxide-heavy alternatives.

The focused formula offers strong depth but does not address lipids, cellular energy, or homocysteine. Magnesium citrate may cause loose stools or abdominal discomfort at the full amount in sensitive users.

Study evidence
Magnesium Supportive 158 studies
Fitness
Fitness
Impact
Highest effect
A- Goal FitB+ Strength of SupportC- CoverageA Formula Quality
Magnesium · 420 mg

Magnesium supports cellular energy, muscles, and normal nervous-system function. The 420 mg elemental amount is clear and citrate provides moderate absorption.

Citrate may cause loose stools in sensitive users at a substantial serving. The simple two-tablet formula remains focused and easy to assess.

Study evidence
Magnesium Disputed 29 studies
Energy
Energy
Impact
Highest effect
B+ Goal FitA- Strength of SupportD+ CoverageA Formula Quality
Magnesium · 420 mg

Magnesium provides direct support for ATP production and normal energy metabolism. The serving is substantial enough to anchor a focused metabolic formula.

Magnesium citrate and its elemental amount are clearly disclosed. A 420 mg citrate serving may cause loose stools or abdominal discomfort in sensitive users.

Study evidence
Magnesium Supportive 4 studies

Ingredients

IngredientAmount per serving
Magnesium (Magnesium Citrate)
 420 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Sugar Free Vegetarian
Report overview
Magnesium (Magnesium Citrate) · 420 mg OverallScore72
D Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value
+1

Magnesium citrate provides moderate absorption and a clearly labeled elemental amount. The dose reaches the target range, while the simple formula avoids competing minerals. A below-median serving cost supports good value despite the absence of a premium chelate.

View ingredientView products
Loading alternative details
85 Performance

Magnesium Bisglycinate Chelate

Healthy Origins
<p>TRAACS magnesium bisglycinate provides premium absorption quality, a useful elemental amount, and exceptional serving value in a clean powder. Compared with Magnesium Citrate, its magnesium form and supporting ingredients may be a better fit where the serving may loosen stools or cause cramping in sensitive users, especially when combined with other magnesium sources, while the product is narrow rather than comprehensive, and its relatively weak satisfaction metric deserves consideration despite the strong formula.</p>
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 Magnesium Citrate, its magnesium form and supporting ingredients may be a better fit where the serving may loosen stools or cause cramping in sensitive users, especially when combined with other magnesium sources, while the focused formula offers excellent serving value.</p>
83 Performance

Albion Chelated Magnesium Glycinate

Swanson Ultra
<p>Patented TRAACS magnesium bisglycinate supplies a substantial magnesium amount in a focused formula. Compared with Magnesium Citrate, its magnesium form and supporting ingredients may be a better fit where the serving may loosen stools or cause cramping in sensitive users, especially when combined with other magnesium sources, while value is reasonable after accounting for absorption quality.</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 recurring cost than Magnesium Citrate makes it a more economical magnesium option, while the simple formula and very low serving cost provide strong value, with digestive tolerance as the main practical uncertainty.</p>
82 Budget

Magnesium Citrate 200 mg

The Vitamin Shoppe
<p>A moderate magnesium citrate amount offers practical daily supplementation with low serving cost. Its lower recurring cost than Magnesium Citrate makes it a more economical magnesium option, while a large bottle improves convenience and value for consistent use.</p>
83 Budget

Magnesium Citrate 420 mg

Nutricost
<p>A substantial amount of magnesium citrate offers useful absorption and a focused formula. Its lower recurring cost than Magnesium Citrate makes it a more economical magnesium option, while digestive tolerance is the main limitation, while the low serving cost makes the product highly competitive.</p>
84 Value

Magnesium Bisglycinate Chelate

Healthy Origins
<p>TRAACS magnesium bisglycinate provides premium absorption quality and a useful elemental amount in a clean tablet. Compared with Magnesium Citrate, its magnesium profile offers a practical quality-to-cost trade-off despite no confirmed cost advantage, while the focused formula offers strong value but remains limited to one foundational mineral pathway.</p>
88 Value

Magnesium Bisglycinate Powder

NOW
<p>Magnesium bisglycinate supplies a well-absorbed form at a practical, moderate amount. Compared with Magnesium Citrate, its magnesium profile and lower recurring cost create a more favorable quality-to-cost balance, while no meaningful dose or formulation concern is evident from the supplied facts.</p>
81 Value

Ultra-Mag

Source Naturals
<p>A broad organic magnesium blend supplies strong form diversity and a substantial amount at an economical cost. Compared with Magnesium Citrate, its magnesium profile offers a practical quality-to-cost trade-off despite no confirmed cost advantage, while the label does not clarify each form share, while high supplemental magnesium and prolonged B6 use may affect tolerability.</p>
Report alternatives

Sources

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

  1. 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
  2. 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
  3. Diagnosis of magnesium-induced diarrhea.
    Fine KD; Santa Ana CA; Fordtran JS · The New England journal of medicine · 1991
    Clinical trial19 participantsDigestive Health forMagnesium
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  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. 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 Fitness forMagnesium
  20. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  21. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  22. Dietary Magnesium May Be Protective for Aging of Bone and Skeletal Muscle in Middle and Younger Older Age Men and Women: Cross-Sectional Findings from the UK Biobank Cohort.
    Welch AA; Skinner J; Hickson M · Nutrients · 2018
    Cross-sectional study156,575 participantsFitness forMagnesium
  23. Dietary Magnesium Is Positively Associated With Skeletal Muscle Power and Indices of Muscle Mass and May Attenuate the Association Between Circulating C-Reactive Protein and Muscle Mass in Women.
    Welch AA; Kelaiditi E; Jennings A; Steves CJ; Spector TD; MacGregor A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2016
    Cross-sectional study2,570 participantsFitness forMagnesium
  24. Nutritional intake as a determinant of high-speed resistance and multicomponent training efficacy on strength in older women at risk of sarcopenia. A randomized clinical trial.
    Polo-Ferrero L; Recio-Rodriguez JI; González-Manzano S; Martín-Vallejo J; Barbero-Iglesias FJ; Montero-Errasquín B; Cruz-Jentoft AJ; Méndez-Sánchez R · Clinical nutrition (Edinburgh, Scotland) · 2025
    Randomized trial80 participantsFitness forMagnesium
  25. Minerals and Sarcopenia in Older Adults: An Updated Systematic Review.
    van Dronkelaar C; Fultinga M; Hummel M; Kruizenga H; Weijs PJM; Tieland M · Journal of the American Medical Directors Association · 2023
    Systematic review45 studies pooledFitness forMagnesium
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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