Magtein® Magnesium L-Threonate — 2,000 mg — 90 Vegan Capsules — Supports Cognitive Function & Sleep Quality*
LifeSource Vitamins Magtein® Magnesium L-Threonate provides magnesium in the patented Magtein® form, designed to support brain health and sleep quality. This supplement offers essential support for
cognitive function and sleep quality, backed by studies in adults. Produced in FDA-registered, GMP-certified facilities, it is Non-GMO and free of wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, and sesame.*
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 cognitive function in older adults with cognitive complaints — 12-week randomized, double-blind, placebo-controlled trial of magnesium L-threonate (MMFS-01) reported cognitive score improvements vs. placebo. (NIH/PubMed — Liu G, 2016)
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Supports sleep quality & daytime functioning — Randomized controlled trial in adults with self-reported sleep problems found improved sleep quality (including deep/REM metrics) and daytime functioning with magnesium L-threonate vs. placebo. (NIH/PubMed — Pouteau E, 2024)
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Supports cognitive function in healthy adults — Double-blind, placebo-controlled study of Magtein®-based formula showed significant improvements in memory and cognition. (NIH/PubMed — Makkar A, 2022)
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Supports sleep efficiency in older adults with insomnia — Supplementation increased sleep time and efficiency in elderly with primary insomnia. (NIH/PubMed — Abbasi B, 2012)
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Supports blood pressure management — Meta-analysis shows reductions in systolic and diastolic blood pressure. (NIH/PubMed — Zhang X, 2016)
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Supports glucose metabolism — Improved fasting glucose and insulin sensitivity in at-risk individuals. (NIH/PubMed — Veronese N, 2021)
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Supports mood balance — Significant decline in depression scores in adults with depressive disorder. (NIH/PubMed — Dibaba D, 2023)
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Supports inflammation reduction — Decreased serum C-reactive protein levels in adults. (NIH/PubMed — Dibaba D, 2018)
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Supports metabolic health — Inverse association with risk of metabolic syndrome. (NIH/PubMed — Kim Y, 2025)
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Supports oxidative stress reduction — Beneficial effects on biomarkers of oxidative stress and inflammation. (NIH/PubMed — Cepeda V, 2025)
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Supports bone health — Positive association with hip BMD in older adults. (NIH/PubMed — Groenendijk I, 2022)
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Supports migraine prevention — Reduced intensity and frequency of migraines. (NIH/PubMed — Chiu H, 2016)
Additional / Promising Evidence*
University / Academic Context
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Massachusetts Institute of Technology (MIT) — Research on magnesium’s role in synaptic plasticity and cognitive health.
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Stanford University — Studies on magnesium L-threonate for brain magnesium levels and memory.
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Harvard Medical School — Insights on magnesium supplementation for sleep and mood.
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Oregon State University – Linus Pauling Institute — Reviews on magnesium’s metabolic and bone health benefits.
Global Evidence & Authoritative Reviews
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National Institutes of Health (NIH) — Fact sheet on magnesium’s health benefits, including sleep and cognitive support. NIH ODS — Magnesium Fact Sheet
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World Health Organization (WHO) — Recognizes magnesium’s role in neurological and metabolic function.
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National Center for Complementary and Integrative Health (NCCIH) — Reviews on magnesium for stress, sleep, and cognitive health. NCCIH — Magnesium Overview
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Linus Pauling Institute — Comprehensive micronutrient information on magnesium. LPI — Magnesium
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 cognitive function in older adults with cognitive complaints — Magtein® Magnesium L-Threonate improves cognitive scores. (NIH/PubMed — Liu G, 2016)
Supports sleep quality & daytime functioning — Magtein® Magnesium L-Threonate enhances sleep quality and daytime functioning. (NIH/PubMed — Pouteau E, 2024)
Brief Benefit Bullets
- Supports cognitive function in older adults*
- Supports sleep quality & daytime functioning*
- Supports working memory & attention*
- Supports muscle & nerve function*
- Supports blood pressure management*
- Supports migraine prevention*
Suggested Use
Take 3 capsules daily (may divide AM/PM), preferably with food, or as directed by your healthcare provider. Best results typically observed after ~30 days of continuous use. If pregnant, nursing, on medications, or have a medical condition, consult your physician.*
Product Specifications
- Serving Size — 3 Vegan Capsules (2,000 mg Magtein®)
- Servings Per Container — 30
- Form — Vegan Capsules
- Free From — Non-GMO, free of wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, sesame*
- Other Ingredients — Hypromellose (cellulose capsule), rice flour, stearic acid (vegetable source), silicon dioxide
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.
Magtein® Magnesium L-Threonate 2000mg crosses blood-brain barrier for cognitive function, memory enhancement, sleep quality, and brain health. 3rd Party Tested & Backed by PubMed and NIH studies!*
