Potassium + Magnesium

Potassium + Magnesium

Nutricost4.8 (1,807 ratings)
Format:Capsule Quantity: 240 Capsule(s) · 120 servings
Goals
$13.95 $0.11 per serving

Product analysis

73 out of 100

Potassium + Magnesium supplies minerals that support normal mineral balance and energy use, particularly when intake is low. Its magnesium component compares favorably on cost.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality58

Magnesium citrate has reasonable absorption potential. Potassium's form is identified, but a comparative quality advantage remains unclear.

Ingredient Transparency100

Both mineral amounts and forms are clearly stated. That makes the serving easy to compare with other mineral supplements.

Value For Money64

The magnesium component compares favorably on cost. Value for the potassium component remains uncertain.

Customer Satisfaction85

Customers report high satisfaction across more than a thousand ratings. The review base gives a broad picture of buyer approval without proving benefits.

Product Focus66

The minerals support normal nutritional needs, with blood-pressure effects small or dependent on starting intake. The 99 mg potassium serving is well below the amounts used in the relevant trials.

Format
Capsule
Container
240 Capsule(s)
Per serving
$0.11
Customer rating
4.8 · 1,807 ratings
Report analysis

Goals

Impact
High effect
B- Ingredient FitD- PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 210 mg
Study evidence
Magnesium Supportive 114 studies
Impact
High effect
B+ Ingredient FitF PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 210 mgPotassium · 99 mg
Study evidence
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Impact
Moderate effect
C- Ingredient FitF PathwaysC EvidenceA+ Formulation Logic
Magnesium · 210 mg
Study evidence
Magnesium Supportive 50 studies
Impact
High effect
B- Ingredient FitD- PathwaysA- EvidenceA+ Formulation Logic
Magnesium · 210 mg
Study evidence
Magnesium Supportive 158 studies
Potassium Supportive 182 studies
Impact
High effect
B- Ingredient FitD PathwaysA- EvidenceA+ Formulation Logic
Potassium · 99 mgMagnesium · 210 mg
Study evidence
Magnesium Supportive 123 studies
Potassium Supportive 117 studies
Impact
Moderate effect
C- Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Magnesium · 210 mg
Study evidence
Magnesium Supportive 13 studies

Ingredients

IngredientAmount per servingScore
Magnesium (Magnesium Citrate)
210 mg 72
Potassium (Potassium Citrate)
99 mg
Gluten Free Adults 18–50
Report overview
D Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyB+ Value
A serving provides 210 mg of magnesium at a relatively low cost for its form. It uses magnesium citrate. The chelation standard is unspecified.
How this ingredient is rated

Active Ingredient Quality & Bioavailability49

It uses magnesium citrate. The chelation standard is unspecified.
Magnesium Form & Absorption Potential
It uses magnesium citrate.
Patented Materials & Chelation Quality
The chelation standard is unspecified.

Dose, Safety & Label Transparency90

The serving supplies 210 mg of magnesium. No calcium or magnesium cofactor is indicated.
Elemental Yield Transparency
The elemental magnesium amount is stated.
Therapeutic Dosage Alignment
A serving supplies 210 mg of magnesium.
Synergistic Formulation Logic
No calcium or magnesium cofactor is indicated.

Value80

The cost for the magnesium form is relatively low.
Price Per Elemental Quality
The cost for the magnesium form is relatively low.
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. Effect of potassium citrate on bone density, microarchitecture, and fracture risk in healthy older adults without osteoporosis: a randomized controlled trial.
    Jehle S; Hulter HN; Krapf R · The Journal of clinical endocrinology and metabolism · 2013
    Randomized trial201 participantsBone Health forPotassium
  7. Long-term persistence of the urine calcium-lowering effect of potassium bicarbonate in postmenopausal women.
    Frassetto L; Morris RC; Sebastian A · The Journal of clinical endocrinology and metabolism · 2005
    Randomized trial170 participantsBone Health forPotassium
  8. Partial neutralization of the acidogenic Western diet with potassium citrate increases bone mass in postmenopausal women with osteopenia.
    Jehle S; Zanetti A; Muser J; Hulter HN; Krapf R · Journal of the American Society of Nephrology : JASN · 2007
    Randomized trial161 participantsBone Health forPotassium
  9. Potassium citrate supplementation results in sustained improvement in calcium balance in older men and women.
    Moseley KF; Weaver CM; Appel L; Sebastian A; Sellmeyer DE · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2013
    Randomized trial52 participantsBone Health forPotassium
  10. Effects of potassium chloride and potassium bicarbonate on endothelial function, cardiovascular risk factors, and bone turnover in mild hypertensives.
    He FJ; Marciniak M; Carney C; Markandu ND; Anand V; Fraser WD; Dalton RN; Kaski JC; MacGregor GA · Hypertension (Dallas, Tex. : 1979) · 2010
    Randomized trial42 participantsBone Health forPotassium
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. Sex-specific associations between sodium and potassium intake and overall and cause-specific mortality: a large prospective U.S. cohort study, systematic review, and updated meta-analysis of cohort studies.
    Gan L; Zhao B; Inoue-Choi M; Liao LM; Graubard BI; Weinstein SJ; Albanes D; Huang J · BMC medicine · 2024
    Meta-analysis416,104 participantsCardiovascular Support forPotassium
  17. Potassium intake, stroke, and cardiovascular disease a meta-analysis of prospective studies.
    D'Elia L; Barba G; Cappuccio FP; Strazzullo P · Journal of the American College of Cardiology · 2011
    Meta-analysis247,510 participants11 studies pooledCardiovascular Support Heart Health forPotassium
  18. Blood pressure response to changes in sodium and potassium intake: a metaregression analysis of randomised trials.
    Geleijnse JM; Kok FJ; Grobbee DE · Journal of human hypertension · 2003
    Meta-analysis27 studies pooledCardiovascular Support forPotassium
  19. Twenty-Four-Hour Urinary Sodium and Potassium Excretion and Their Associations With Blood Pressure Among Adults in China: Baseline Survey of Action on Salt China.
    Li Y; Zhang P; Wu J; Ma J; Xu J; Zhang X; Luo R; Liu M; Sun Y; Li X; Tan M; He FJ; MacGregor GA; Li X · Hypertension (Dallas, Tex. : 1979) · 2021
    Cross-sectional study5,353 participantsCardiovascular Support forPotassium
  20. Dietary Sodium and Potassium Intake and Risk of Non-Fatal Cardiovascular Diseases: The Million Veteran Program.
    Wang DD; Li Y; Nguyen XT; Song RJ; Ho YL; Hu FB; Willett WC; Wilson PWF; Cho K; Gaziano JM; Djoussé L; On Behalf Of The Va Million Veteran Program · Nutrients · 2022
    Cohort study180,156 participantsCardiovascular Support forPotassium