Product Image

Calcium Citrate Caps

NOW
4.8
★ ★ ★ ★ ★
(2275 ratings)
Manganese 4 mg
Calcium 450 mg
Copper 0.75 mg
Magnesium 225 mg
Product Image
Score82
Useful calcium citrate and clear trace-mineral amounts make this a capable bone-support option. Lower-quality magnesium oxide and vitamin D2 are the main compromises.
How scoring works
Quantity:240 Capsule(s) • (80 servings)
Goals:
Bone Health
General Health
Energy
Heart Health
Stress Relief

Score 82

Useful calcium citrate and clear trace-mineral amounts make this a capable bone-support option. Lower-quality magnesium oxide and vitamin D2 are the main compromises.
How scoring works
$20.80($0.26 per serving)
iHerb
$ 22.04
Daily Vita
$ 20.80
Vitacost
$ 22.09
Amazon
$ 21.89
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Analysis

Calcium citrate provides a well-absorbed form at a useful 450 mg amount, with magnesium, zinc, copper, manganese, and vitamin D2 completing the bone-focused blend. The formula covers several structural minerals without hiding amounts in a proprietary blend.

Magnesium oxide is the largest quality compromise because it is less reliably absorbed than citrate or glycinate forms. Vitamin D2 is also less preferred than D3, while the exact chelate carriers for zinc, copper, and manganese are not named.

The three-capsule serving is best suited to users filling specific calcium and mineral gaps. Favorable value and a large supply improve practicality, though the product does not include vitamin K or other bone-matrix support.

Who is it for
  • Adults seeking calcium citrate with supporting minerals
  • People who want an economical bone-mineral formula
Best for
  • Calcium intake
  • Bone-mineral support
  • Combined calcium and magnesium supplementation

Pros

  • Uses calcium citrate
  • Clearly lists all active amounts
  • Includes zinc, copper, and manganese
  • Offers favorable value

Cons

  • Relies on magnesium oxide
  • Uses vitamin D2 rather than D3
  • Requires three capsules per serving
  • Does not include vitamin K

Warnings

  • Magnesium oxide may cause loose stools, cramping, or nausea in sensitive users.
  • People with hypercalcemia, recurrent calcium-based kidney stones, or significant kidney impairment should confirm that supplemental calcium fits their care plan.
  • Calcium and magnesium can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics, so doses should be separated as directed.

Nutrient quality

84 Highest impact

Calcium citrate and chelated zinc, copper, and manganese provide useful form quality at meaningful amounts. Magnesium oxide and vitamin D2 are less favorable choices, but the formula shows no obvious excessive dose.

Ingredient transparency

79 High impact

Every listed active has a stated amount, and no proprietary blend obscures the core formula. Daily-use directions and non-active ingredients are missing from the supplied details.

Customer satisfaction

71 High impact

The supplied average rating is very strong and is supported by a large review count. No detailed feedback is available to assess recurring concerns or purpose-specific experiences.

Value for money

94 Highest impact

Meaningful mineral doses and a focused formula provide strong value. Less favorable magnesium and vitamin D forms are minor trade-offs at the product's low qualitative serving cost.

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Goals

Bone Health
Bone Health
Impact
Highest effect
A Goal FitB Strength of SupportB+ CoverageA- Formula Quality
Magnesium · 225 mgCalcium · 450 mgVitamin D · 19 mcgCopper · 0.75 mgManganese · 4 mgZinc · 11 mg

Calcium citrate, magnesium, vitamin D, zinc, copper, and manganese provide strong structural and remodeling support. Calcium is well dosed and well absorbed, while vitamin D2 and magnesium oxide are weaker form choices.

The formula covers mineral raw materials, vitamin-assisted absorption, and trace cofactors for the bone matrix. Missing vitamin K and collagen keep it from fully covering calcium placement and the organic protein framework.

Study evidence
Calcium Supportive 144 studies
Copper Disputed 20 studies
Magnesium Supportive 48 studies
Manganese Adverse 12 studies
Vitamin D Supportive 202 studies
Zinc Supportive 33 studies
General Health
Stress Resilience
General Health
Impact
High effect
B+ Goal FitC+ Strength of SupportB- CoverageA- Formula Quality
Vitamin D · 19 mcgMagnesium · 225 mgZinc · 11 mg

Calcium citrate, magnesium, zinc, copper, manganese, and vitamin D form a sensible mineral-support combination. The disclosed amounts can contribute to bone and routine mineral needs.

Magnesium oxide has low absorption, and vitamin D2 is less preferred than vitamin D3. Vague amino acid chelates for several trace minerals also limit confidence in form quality despite a clear label.

Study evidence
Magnesium Supportive 114 studies
Vitamin D Supportive 115 studies
Zinc Supportive 60 studies
Energy
Energy
Impact
High effect
B Goal FitC+ Strength of SupportC- CoverageA- Formula Quality
Vitamin D · 19 mcgMagnesium · 225 mg

A meaningful magnesium amount can support normal energy metabolism when magnesium intake is low. Zinc and vitamin D add broad nutritional support, while calcium remains the formula’s main focus.

Magnesium oxide has lower absorption quality and may be more likely to cause digestive discomfort than gentler forms. The product is primarily a bone-mineral formula and does not address alertness, stress resilience, or wider energy metabolism.

Study evidence
Magnesium Supportive 4 studies
Vitamin D Supportive 32 studies
Heart Health
Healthy Blood Pressure
Heart Health
Impact
High effect
B- Goal FitC Strength of SupportC- CoverageB Formula Quality
Magnesium · 225 mgVitamin D · 19 mcg

Magnesium reaches a meaningful amount and directly supports normal vascular tone and heart rhythm. Calcium, zinc, copper, manganese, and vitamin D add a coherent mineral-health context.

Magnesium oxide has low systemic absorption, and vitamin D2 is less preferred than D3. The formula lacks lipid, nitric-oxide, mitochondrial, or homocysteine support, so cardiovascular coverage remains narrow.

Study evidence
Magnesium Supportive 158 studies
Vitamin D Mixed 164 studies
Stress Relief
Stress Relief
Impact
High effect
B- Goal FitC Strength of SupportD+ CoverageB Formula Quality
Vitamin D · 19 mcgMagnesium · 225 mg

Magnesium provides foundational support for nervous-system regulation and relaxation. Its role is supported by established physiology, with the clearest benefit expected when intake or status is low.

The 225 mg magnesium amount reaches the minimum meaningful range. Magnesium oxide has poor systemic absorption despite full amount disclosure.

Study evidence
Magnesium Supportive 13 studies
Vitamin D Supportive 41 studies
Zinc Supportive 9 studies
Testosterone Support
Testosterone Support
Impact
Moderate effect
C Goal FitC- Strength of SupportD+ CoverageC- Formula Quality
Magnesium · 225 mgZinc · 11 mgVitamin D · 19 mcg

Zinc, magnesium, and vitamin D provide a basic endocrine mineral framework. The formula is most relevant to nutrient adequacy and lacks direct or multi-pathway testosterone support.

Magnesium oxide and vitamin D2 are weaker forms, while calcium dominates the product’s purpose. The three-capsule serving adds inconvenience without premium endocrine actives.

Study evidence
Magnesium Disputed 5 studies
Vitamin D Supportive 56 studies
Zinc Disputed 7 studies
Cardiovascular Support
Cardiovascular Support
Impact
Moderate effect
C- Goal FitC Strength of SupportF CoverageD+ Formula Quality
Magnesium · 225 mgVitamin D · 19 mcg

A useful magnesium amount provides limited vascular support. The calcium-centered design does not target lipids, nitric oxide, or cardiac energy.

Mixed form quality weakens the otherwise clear label. The concise formula is transparent but goal mismatched.

Study evidence
Magnesium Supportive 123 studies

Ingredients

IngredientAmount per serving
Vitamin D2 (Ergocalciferol)
 19 mcg
Calcium (Calcium Citrate)
 450 mg
Magnesium (Magnesium Oxide)
 225 mg
Zinc (Zinc Amino Acid Chelate)
 11 mg
Copper (Copper Amino Acid Chelate)
 0.75 mg
Manganese (Manganese Amino Acid Chelate)
 4 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Manganese (Manganese Amino Acid Chelate) · 4 mg OverallScore96
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

A chelated manganese form and a dose at the lower end of the target range provide a solid mineral contribution. The elemental amount is easy to track alongside the other bone-support minerals. Serving cost is below the collection median, giving the combination good practical value.

View ingredientView products
Calcium (Calcium Citrate) · 450 mg OverallScore94
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Calcium citrate provides reliable absorption, and the 450 mg amount is well suited to one serving. The elemental amount is clear and the broader mineral formula remains inexpensive per serving. No meaningful product-specific warning is supported by the supplied details.

View ingredientView products
Copper (Copper Amino Acid Chelate) · 0.75 mg OverallScore85
A+ Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA Value

Copper amino acid chelate provides a high-quality form with a clearly stated 0.75 mg amount. The copper dose is below the adult RDA, though its balance with zinc is well proportioned. The serving cost is favorable for a multi-mineral product, but copper support is modest.

View ingredientView products
Loading alternative details
86 Performance

Calcium & Magnesium Citrate Powder with Vitamin D3

NOW
<p>Calcium citrate, magnesium citrate, and vitamin D3 improve the core mineral forms compared with magnesium oxide and vitamin D2 in the original. Zinc, copper, and manganese are absent, but the main calcium-magnesium pairing is cleaner.</p>
80 Performance

Calcium Magnesium 1:1 Ratio

Bluebonnet
<p>Balanced calcium and magnesium amounts use favorable citrate, malate, and aspartate forms. Disclosure does not show the split between calcium forms and trace minerals are absent, but average form quality is stronger.</p>
80 Performance

Calcium Magnesium Citrate Plus Vitamin D-3 Orange Vanilla

LifeTIME
<p>All-citrate calcium and magnesium plus vitamin D3 create a well-aligned bone formula with clear core forms. Magnesium may loosen stools in sensitive users, and the liquid does not provide the original zinc, copper, or manganese.</p>
85 Budget

Cal/Mag 500 mg/250 mg

NaturesPlus
<p>Chelated calcium and magnesium provide a balanced formula with stronger magnesium form quality and excellent serving value. Zinc, copper, manganese, and vitamin D are omitted, so the alternative is more focused than the original.</p>
80 Budget

Calcium Mag & D Complex

Nature's Way
<p>Citrate, malate, and aspartate improve a useful calcium-magnesium formula at lower serving cost. Carbonate and oxide remain, and the trace-mineral coverage is narrower than the original.</p>
78 Budget

Coral Calcium Plus

NOW
<p>Calcium, magnesium, and vitamin D provide economical bone support in a long-supply format. Citrate and aspartate help, but coral calcium, magnesium oxide, and missing chelated trace minerals limit the comparison.</p>
85 Value

Cal/Mag Caps

NaturesPlus
<p>Amino acid chelates deliver balanced calcium and magnesium with strong form quality and favorable serving value. The narrower profile omits vitamin D and trace minerals, but avoids the original magnesium oxide.</p>
82 Value

Calcium & Magnesium Mineral Complex

Nature's Way
<p>Bisglycinate, citrate, and malate forms strengthen calcium and magnesium delivery at efficient serving value. Some carbonate and oxide remain, and the formula does not match the original trace-mineral breadth.</p>
80 Value

Liquid Calcium Magnesium Citrate with Vitamin D3 Natural Strawberry Flavor

Solgar
<p>Citrate minerals and vitamin D3 provide useful calcium-magnesium support in a well-liked liquid format. Label duplication reduces clarity, but the blend offers reasonable value and avoids vitamin D2.</p>
Report alternatives

Sources

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

  1. Treatment with alendronate plus calcium, alendronate alone, or calcium alone for postmenopausal low bone mineral density.
    Bonnick S; Broy S; Kaiser F; Teutsch C; Rosenberg E; DeLucca P; Melton M · Current medical research and opinion · 2007
    Randomized trial701 participantsBone Health forCalcium
  2. Associations of dietary calcium intake with metabolic syndrome and bone mineral density among the Korean population: KNHANES 2008-2011.
    Kim MK; Chon SJ; Noe EB; Roh YH; Yun BH; Cho S; Choi YS; Lee BS; Seo SK · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2018
    Cross-sectional study14,705 participantsBone Health forCalcium
  3. Calcium supplementation during pregnancy and maternal and offspring bone health: a systematic review and meta-analysis.
    Tihtonen K; Korhonen P; Isojärvi J; Ojala R; Ashorn U; Ashorn P; Tammela O · Annals of the New York Academy of Sciences · 2022
    Meta-analysis1,566 participants7 studies pooledBone Health forCalcium
  4. 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
  5. Diagnosis of magnesium-induced diarrhea.
    Fine KD; Santa Ana CA; Fordtran JS · The New England journal of medicine · 1991
    Clinical trial19 participantsDigestive Health forMagnesium
  6. 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
  7. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  8. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  9. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  10. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  11. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  12. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  13. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  14. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  15. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  16. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. Risk of Environmental Chemicals on Bone Fractures Is Independent of Low Bone Mass in US Adults: Insights from 2017 to 2018 NHANES.
    Ling R; Ai Y; Chen C; Zhang J; Zou Z; Cheng S; Li C; Li X; Wang B · Metabolites · 2023
    Cross-sectional study2,640 participantsBone Health forManganese
  23. The Manganese-Bone Connection: Investigating the Role of Manganese in Bone Health.
    Taskozhina G; Batyrova G; Umarova G; Issanguzhina Z; Kereyeva N · Journal of clinical medicine · 2024
    Narrative reviewBone Health forManganese
  24. Associations of multiple metals with bone mineral density: A population-based study in US adults.
    Wei MH; Cui Y; Zhou HL; Song WJ; Di DS; Zhang RY; Huang Q; Liu JA; Wang Q · Chemosphere · 2021
    Cross-sectional studyBone Health forManganese
  25. Sex-specific associations of urinary mixed-metal concentrations with femoral bone mineral density among older people: an NHANES (2017-2020) analysis.
    Li H; Li G; Yi M; Zhou J; Deng Y; Huang Y; He S; Meng X; Liu L · Frontiers in public health · 2024
    Cross-sectional study31 participantsBone Health forManganese
  26. Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study.
    Wang C; Zhu Y; Long H; Ou M; Zhao S · PloS one · 2022
    Cross-sectional study9,732 participantsBone Health forManganese
  27. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial.
    Moon RJ; D' Angelo S; Curtis EM; Ward KA; Crozier SR; Schoenmakers I; Javaid MK; Bishop NJ; Godfrey KM; Cooper C; Harvey NC; MAVIDOS Trial Group · The American journal of clinical nutrition · 2024
    Randomized trial454 participantsBone Health forVitamin D
  28. Vitamin D analogs and bone: preclinical and clinical studies with eldecalcitol.
    Matsumoto T; Takano T; Saito H; Takahashi F · BoneKEy reports · 2014
    Narrative reviewBone Health forVitamin D
  29. Efficacy of vitamin D fortified foods on bone mineral density and serum bone biomarkers: A systematic review and meta-analysis of interventional studies.
    Tangestani H; Djafarian K; Emamat H; Arabzadegan N; Shab-Bidar S · Critical reviews in food science and nutrition · 2020
    Meta-analysis1,786 participants20 studies pooledBone Health forVitamin D
  30. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial.
    Tsujita M; Doi Y; Obi Y; Hamano T; Tomosugi T; Futamura K; Okada M; Hiramitsu T; Goto N; Isaka Y; Takeda A; Narumi S; Watarai Y · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Randomized trial193 participantsBone Health forVitamin D
  31. Vitamin D supplementation and bone health in post-menopausal women: a 24-month randomized controlled intervention with enhanced bioavailability formulations.
    Rasool N; Munir Y · European journal of clinical nutrition · 2026
    Randomized trial612 participantsBone Health forVitamin D
  32. Increased incidence of fractures in middle-aged and elderly men with low intakes of phosphorus and zinc.
    Elmståhl S; Gullberg B; Janzon L; Johnell O; Elmståhl B · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 1999
    Cohort study6,576 participantsBone Health forZinc
  33. Zinc Supplementation Increases Procollagen Type 1 Amino-Terminal Propeptide in Premenarcheal Girls: A Randomized Controlled Trial.
    Berger PK; Pollock NK; Laing EM; Chertin V; Bernard PJ; Grider A; Shapses SA; Ding KH; Isales CM; Lewis RD · The Journal of nutrition · 2016
    Randomized trial147 participantsBone Health forZinc
  34. Randomized controlled trial of prenatal zinc supplementation and fetal bone growth.
    Merialdi M; Caulfield LE; Zavaleta N; Figueroa A; Costigan KA; Dominici F; Dipietro JA · The American journal of clinical nutrition · 2004
    Randomized trial242 participantsBone Health forZinc
  35. The effects of zinc supplementation on serum zinc, alkaline phosphatase activity and fracture healing of bones.
    Sadighi A; Roshan MM; Moradi A; Ostadrahimi A · Saudi medical journal · 2009
    Randomized trial60 participantsBone Health forZinc
  36. Is Zinc an Important Trace Element on Bone-Related Diseases and Complications? A Meta-analysis and Systematic Review from Serum Level, Dietary Intake, and Supplementation Aspects.
    Ceylan MN; Akdas S; Yazihan N · Biological trace element research · 2021
    Meta-analysis40 studies pooledBone Health forZinc
  37. 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
  38. 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
  39. 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
  40. 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 Heart Health forVitamin D
  41. 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
  42. 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
  43. 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
  44. Red blood cell magnesium and chronic fatigue syndrome.
    Cox IM; Campbell MJ; Dowson D · Lancet (London, England) · 1991
    Randomized trial32 participantsEnergy forMagnesium
  45. Exercise, magnesium and immune function.
    Laires MJ; Monteiro C · Magnesium research · 2008
    Narrative reviewEnergy forMagnesium
  46. Effect of Vitamin D Supplementation on Fatigue in Multiple Sclerosis: A Systematic Review and Meta-Analysis.
    López-Muñoz P; Torres-Costoso AI; Fernández-Rodríguez R; Guzmán-Pavón MJ; de Arenas-Arroyo SN; Basco-López JÁ; Reina-Gutiérrez S · Nutrients · 2023
    Meta-analysis345 participants5 studies pooledEnergy forVitamin D
  47. Vitamin D Supplementation in Adolescents and Young Adults With Juvenile Systemic Lupus Erythematosus for Improvement in Disease Activity and Fatigue Scores: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Lima GL; Paupitz J; Aikawa NE; Takayama L; Bonfa E; Pereira RM · Arthritis care & research · 2016
    Randomized trial40 participantsEnergy forVitamin D
  48. Vitamin D in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome After COVID-19 or Vaccination: A Randomized Controlled Trial.
    Kodama S; Nakata M; Konishi N; Yoshino M; Fujisawa A; Naganuma M; Kobayashi Y; Hirai Y; Kitagawa A; Miyokawa M; Mishima R; Teramukai S; Fukushima M · Nutrients · 2026
    Randomized trial91 participantsEnergy forVitamin D
  49. The effects of vitamin D supplementation on disease activity and fatigue in Libyan rheumatoid arthritis patients.
    Elfituri S · Reumatologia · 2024
    Randomized trial68 participantsEnergy forVitamin D
  50. The effect of home-based aerobic training and vitamin D supplementation on fatigue and quality of life in patients with multiple sclerosis during COVID-19 outbreak.
    Bahmani E; Hoseini R; Amiri E · Science & sports · 2022
    Randomized trial40 participantsEnergy forVitamin D
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. Vitamin D supplementation for prevention of mortality in adults.
    Bjelakovic G; Gluud LL; Nikolova D; Whitfield K; Wetterslev J; Simonetti RG; Bjelakovic M; Gluud C · The Cochrane database of systematic reviews · 2014
    Meta-analysis95,286 participants159 studies pooledGeneral Health forVitamin D
  57. Effect of vitamin D on gastrointestinal symptoms and health-related quality of life in irritable bowel syndrome patients: a randomized double-blind clinical trial.
    Abbasnezhad A; Amani R; Hajiani E; Alavinejad P; Cheraghian B; Ghadiri A · Neurogastroenterology and motility · 2018
    Randomized trial90 participantsGeneral Health forVitamin D
  58. The impact of vitamin D administration on mortality in COVID-19 patients: a systematic review and meta-analysis of randomized controlled trials.
    Kow CS; Ramachandram DS; Hasan SS; Wong Z; Thiruchelvam K · Inflammopharmacology · 2024
    Meta-analysis2,495 participants19 studies pooledGeneral Health forVitamin D
  59. Vitamin D Status and Mortality: A Systematic Review of Observational Studies.
    Heath AK; Kim IY; Hodge AM; English DR; Muller DC · International journal of environmental research and public health · 2019
    Systematic review84 studies pooledGeneral Health forVitamin D
  60. Meta-analysis of long-term vitamin D supplementation on overall mortality.
    Zheng Y; Zhu J; Zhou M; Cui L; Yao W; Liu Y · PloS one · 2014
    Meta-analysis42 studies pooledGeneral Health forVitamin D
  61. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  62. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  63. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  64. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  65. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  66. 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
  67. 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
  68. 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
  69. Vitamin D supplementation for cardiometabolic risk markers in pregnant women based on the gestational diabetes mellitus or obesity status : a randomized clinical trial.
    Yin WJ; Wang P; Ma SS; Tao RX; Hu HL; Jiang XM; Zhang Y; Tao FB; Zhu P · European journal of nutrition · 2024
    Randomized trial1,537 participantsHeart Health forVitamin D
  70. Paricalcitol and endothelial function in chronic kidney disease trial.
    Zoccali C; Curatola G; Panuccio V; Tripepi R; Pizzini P; Versace M; Bolignano D; Cutrupi S; Politi R; Tripepi G; Ghiadoni L; Thadhani R; Mallamaci F · Hypertension (Dallas, Tex. : 1979) · 2015
    Randomized trial88 participantsHeart Health forVitamin D
  71. Vitamin D Supplementation, Serum 25(OH)D Concentrations and Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis.
    Mirhosseini N; Rainsbury J; Kimball SM · Frontiers in cardiovascular medicine · 2020
    Meta-analysis81 studies pooledHeart Health forVitamin D
  72. Does vitamin D supplementation modulate metabolic risk factors of cardiovascular disease? A systematic review and meta-analysis of clinical trials.
    Abumweis S; Alqadi S; Al Tarteer A; Alrefai W; Alzoughool F; Jew S; Qudah T · Asia Pacific journal of clinical nutrition · 2026
    Meta-analysis45 studies pooledHeart Health forVitamin D
  73. 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
  74. 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
  75. 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
  76. 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
  77. 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
  78. Vitamin D Alleviates Anxiety and Depression in Elderly People with Prediabetes: A Randomized Controlled Study.
    Zaromytidou E; Koufakis T; Dimakopoulos G; Drivakou D; Konstantinidou S; Rakitzi P; Grammatiki M; Manthou E; Notopoulos A; Iakovou I; Gotzamani-Psarrakou A; Kotsa K · Metabolites · 2023
    Randomized trial90 participantsStress Relief forVitamin D
  79. Effects of an 8-week high-dose vitamin D supplementation on fatigue and neuropsychiatric manifestations in post-COVID syndrome: A randomized controlled trial.
    Charoenporn V; Tungsukruthai P; Teacharushatakit P; Hanvivattanakul S; Sriyakul K; Sukprasert S; Kamalashiran C; Tungsukruthai S; Charernboon T · Psychiatry and clinical neurosciences · 2024
    Randomized trial80 participantsStress Relief forVitamin D
  80. The Influence of Vitamin D Intake and Status on Mental Health in Children: A Systematic Review.
    Głąbska D; Kołota A; Lachowicz K; Skolmowska D; Stachoń M; Guzek D · Nutrients · 2021
    Systematic review24 studies pooledStress Relief forVitamin D
  81. Vitamin D3 enhances mood in healthy subjects during winter.
    Lansdowne AT; Provost SC · Psychopharmacology · 1998
    Randomized trial44 participantsStress Relief forVitamin D
  82. Comparative Effects of Etelcalcetide and Maxacalcitol on Serum Calcification Propensity in Secondary Hyperparathyroidism: A Randomized Clinical Trial.
    Shoji T; Nakatani S; Kabata D; Mori K; Shintani A; Yoshida H; Takahashi K; Ota K; Fujii H; Ueda S; Nishi S; Nakatani T; Yoshiyama M; Goto K; Hamada T; Imanishi M; Ishimura E; Kagitani S; Kato Y; Kumeda Y; Maekawa K; Matsumura T; Nagayama H; Obi Y; Ohno Y; Sai Y; Sakurai M; Sasaki S; Shidara K; Shoji S; Tsujimoto Y; Yamakawa K; Yasuda H; Yodoi S; Inaba M; Emoto M · Clinical journal of the American Society of Nephrology : CJASN · 2021
    Randomized trial326 participantsStress Relief forVitamin D
  83. Investigating the effect of zinc supplementation on probability of relapse and mental health in patients with opioid use disorder undergoing methadone maintenance treatment.
    Amini Z; HeidariFarsani E · Substance abuse treatment, prevention, and policy · 2023
    Randomized trial68 participantsStress Relief forZinc
  84. A systematic review of the association between zinc and anxiety.
    Azargoonjahromi A · Nutrition reviews · 2024
    Systematic review9 studies pooledStress Relief forZinc
  85. Zinc acutely and temporarily inhibits adrenal cortisol secretion in humans. A preliminary report.
    Brandão-Neto J; de Mendonça BB; Shuhama T; Marchini JS; Pimenta WP; Tornero MT · Biological trace element research · 1991
    Clinical trial27 participantsStress Relief forZinc
  86. Low Zinc, Copper, and Manganese Intake is Associated with Depression and Anxiety Symptoms in the Japanese Working Population: Findings from the Eating Habit and Well-Being Study.
    Nakamura M; Miura A; Nagahata T; Shibata Y; Okada E; Ojima T · Nutrients · 2019
    Cross-sectional study2,089 participantsStress Relief forZinc
  87. Mediation effects of thyroid hormones in the associations between essential metal elements and anxiety or depression symptoms in the elderly.
    Li J; Wang W; Peng Y; Qin N; Li J; Wei Y; Wang B; Zeng H; Li H; Cheng L · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Observational study416 participantsStress Relief forZinc
  88. 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
  89. 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
  90. 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
  91. 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
  92. 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
  93. Effect of Two Different Doses of Vitamin D Supplementation on Metabolic Profiles of Insulin-Resistant Patients with Polycystic Ovary Syndrome.
    Jamilian M; Foroozanfard F; Rahmani E; Talebi M; Bahmani F; Asemi Z · Nutrients · 2018
    Randomized trial90 participantsTestosterone Support forVitamin D
  94. Androgens and hirsutism score of overweight women with polycystic ovary syndrome improved after vitamin D treatment: A randomized placebo controlled clinical trial.
    Al-Bayyari N; Al-Domi H; Zayed F; Hailat R; Eaton A · Clinical nutrition (Edinburgh, Scotland) · 2021
    Randomized trial60 participantsTestosterone Support forVitamin D
  95. Association between plasma 25-OH vitamin D and testosterone levels in men.
    Nimptsch K; Platz EA; Willett WC; Giovannucci E · Clinical endocrinology · 2012
    Case-control study1,362 participantsTestosterone Support forVitamin D
  96. Causal Link Between Vitamin D and Total Testosterone in Men: A Mendelian Randomization Analysis.
    Chen C; Zhai H; Cheng J; Weng P; Chen Y; Li Q; Wang C; Xia F; Wang N; Lu Y · The Journal of clinical endocrinology and metabolism · 2020
    Other4,254 participantsTestosterone Support forVitamin D
  97. Associations of vitamin D status and vitamin D-related polymorphisms with sex hormones in older men.
    Rafiq R; van Schoor NM; Sohl E; Zillikens MC; Oosterwerff MM; Schaap L; Lips P; de Jongh RT · The Journal of steroid biochemistry and molecular biology · 2017
    Cohort study643 participantsTestosterone Support forVitamin D
  98. Environmental exposure to metals and male reproductive hormones: circulating testosterone is inversely associated with blood molybdenum.
    Meeker JD; Rossano MG; Protas B; Padmanahban V; Diamond MP; Puscheck E; Daly D; Paneth N; Wirth JJ · Fertility and sterility · 2010
    Cross-sectional study219 participantsTestosterone Support forZinc
  99. Nonpharmacological Interventions for the Management of Testosterone and Sperm Parameters: A Scoping Review.
    Santos HO; Cadegiani FA; Forbes SC · Clinical therapeutics · 2022
    Scoping reviewTestosterone Support forZinc
  100. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization.
    Fallah A; Mohammad-Hasani A; Colagar AH · Journal of reproduction & infertility · 2020
    Narrative reviewTestosterone Support forZinc
  101. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  102. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc