Magnesium Citrate — 400 mg, 90 Softgels — Bioavailable Magnesium for Muscle, Heart & Sleep Support*
LifeSource Vitamins Magnesium Citrate provides 400 mg of magnesium in easy-to-swallow softgels, featuring a blend of highly bioavailable citrate, gentle glycinate, energy-supporting malate, and concentrated oxide. This formulation supports cardiovascular health, normal muscle and nerve function, energy production, and restful sleep, reflecting the mineral’s vital roles. Produced in FDA-registered, GMP-certified facilities, it uses quality ingredients. Non-GMO, gluten-free, free of artificial colors and preservatives.*
Research Promise:At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep guidance aligned with credible science.*
Clinically Studied Benefits (Human Evidence)
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Supports high bioavailability — Magnesium citrate shows superior absorption and urinary excretion compared to oxide in adults. (NIH/PubMed — Lindberg JS, 1990)
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Promotes migraine prevention — Magnesium is recognized as a preventive option for some patients in reviews. (NIH/PMC — AHS Consensus, 2023)
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Supports cardiovascular health — Magnesium offers modest blood pressure reductions in certain groups per meta-analyses. (NIH/PMC — Magnesium in Hypertension, 2024)
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Improves sleep quality — Magnesium supplementation enhances insomnia parameters in older adults. (NIH/PMC — Abbasi B, 2012)
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Enhances insulin sensitivity — Magnesium benefits glucose metabolism in low-Mg populations. (NIH/PMC — Dastgerdi MS, 2022)
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Supports bone health — Magnesium is integral to bone metabolism and skeletal maintenance. (NIH — ODS Fact Sheet, n.d.)
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Reduces kidney stone risk context — Potassium-magnesium citrate reduces recurrence; informs citrate/Mg physiology. (NIH/PubMed — Ettinger B, 1997)
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Reduces stress and mood issues — Magnesium improves stress/anxiety scores in low-Mg adults. (NIH/PMC — Noah L, 2021)
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May aid restless legs — Magnesium shows potential benefit in small trials. (NIH/PubMed — Marshall NS, 2019)Emerging Evidence
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Supports vitamin D synergy — Magnesium is required for vitamin D activation. (Mayo Clinic — Uwitonze AM, 2022)
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Enhances energy production — Magnesium supports cellular energy pathways. (NIH/PubMed — Cepeda V, 2025)
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Supports nerve function — Magnesium enhances conduction in adults. (NIH/PubMed — Serefko A, 2021)
Additional / Promising Evidence*
University / Academic Context
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Harvard Medical School — Research on magnesium citrate bioavailability.
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University of California, Los Angeles (UCLA) — Studies on magnesium for migraine prevention.
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University of Cambridge — Reviews magnesium’s sleep benefits.
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Oregon State University – Linus Pauling Institute — Explores magnesium’s bone health role.
Global Evidence & Authoritative Reviews
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World Health Organization (WHO) — Recognizes magnesium’s cardiovascular benefits.
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National Institutes of Health (NIH) — Systematic reviews on magnesium’s muscle function. (NIH/PubMed — Zhang Y, 2024)
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European Food Safety Authority (EFSA) — Confirms magnesium’s bone health support.
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American Headache Society (AHS) — Guidelines on magnesium for migraine prevention.
We monitor research from leading institutions — Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, the University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, and Ohio State — to keep our guidance aligned with credible science.*
Key Ingredients
Supports high bioavailability — Magnesium Citrate shows superior absorption. (NIH/PubMed — Lindberg JS, 1990)
Promotes relaxation — Magnesium Glycinate supports gentle stress relief. (NIH/PubMed — Nielsen FH, 2021)
Enhances energy production — Magnesium Malate aids cellular energy. (NIH/PubMed — Cepeda V, 2025)
Supports daily intake — Magnesium Oxide provides concentrated magnesium. (NIH/PubMed — Walker AF, 2003)
Brief Benefit Bullets
- Bioavailable magnesium blend for daily use*
- Supports healthy muscle function & relaxation*
- Helps maintain cardiovascular health*
- Supports energy production & nerve function*
- May aid migraine prevention & sleep quality*
- Supports bone health*
Suggested Use
Take 3 softgels daily with food, or as directed by your healthcare provider. For best absorption, take with a full glass of water. Do not exceed recommended use. If pregnant, nursing, have kidney/heart disease, or take medications, consult your physician.*
Product Specifications
- Serving Size — 3 softgels - 30 Day Supply
- Magnesium per Serving — 400 mg (from citrate, glycinate, malate, oxide)
- Count — 90 easy-to-swallow softgels
- Free From — Gluten, artificial colors & preservatives*
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
Magnesium Citrate 400 mg softgels support muscle, heart, sleep & bone health with bioavailable forms. 3rd-party tested. Clinically Studied — NIH/PubMed!*
