Magnesium Glycinate, graded Moderate-evidence on Magellan — pooled analyses of randomized trials indicate oral magnesium lowers blood pressure by a small amount—about 2 mmHg in a 34-trial analysis—with larger reductions in people who are hypertensive, magnesium-deficient, or insulin-resistant, and generally no significant effect in normotensive individuals. Most evidence comes from other salt forms (oxide, citrate), so glycinate-specific superiority claims outrun the data.
Source: Hypertension 2016, PMID 27402922 ↗ · Nutraceuticals & Cellular Energizers · How Magellan grades evidence · Study write-up · evidence confidence: high
Magnesium is an essential dietary mineral and the second most abundant intracellular cation, serving as a cofactor in hundreds of enzymatic reactions involved in energy metabolism, protein synthesis, and nerve and muscle function. Magnesium glycinate (magnesium bis-glycinate) is an organic magnesium salt chelated with the amino acid glycine, one of several supplement forms used to raise magnesium status. Dietary magnesium comes from whole grains, legumes, nuts, seeds, and green leafy vegetables, and intakes below recommended amounts are common. In cardiovascular physiology, magnesium influences vascular tone and endothelial function, which underlies its study as a blood-pressure-modifying nutrient. The glycinate form in particular is marketed for sleep and relaxation, a niche tied to magnesium's roles in NMDA- and GABA-mediated neurotransmission.
Pooled analyses of randomized trials indicate oral magnesium lowers blood pressure by a small amount—about 2 mmHg in a 34-trial analysis—with larger reductions in people who are hypertensive, magnesium-deficient, or insulin-resistant, and generally no significant effect in normotensive individuals. For sleep, a placebo-controlled trial in elderly people with primary insomnia improved sleep scores and efficiency while raising melatonin and lowering cortisol, and a 2025 trial of magnesium bisglycinate itself modestly improved insomnia severity in adults reporting poor sleep, especially those with low dietary magnesium intake. Higher dietary intake tracks with lower risk of type 2 diabetes, coronary heart disease, and all-cause mortality in prospective cohorts. Most trials used oxide, citrate, or other salts, so claims that the glycinate form is superior outrun the evidence. This evidence describes magnesium the mineral and its mechanisms and dietary/serum status, not this specific commercial magnesium glycinate product.
Peer-reviewed studies on the active compound — citations link to PubMed.
“magnesium significantly reduced systolic and diastolic blood pressure”
“Magnesium intake resulted in a reduction in systolic blood pressure”
“significant reduction of systolic and diastolic blood pressure in T2DM patients”
“This systematic review provides Grade C (possibly effective) evidence for prevention of migraine with magnesium.”
“Intravenous magnesium reduces acute migraine attacks within 15 - 45 minutes, 120 minutes, and 24 hours after the initial infusion and oral magnesium alleviates the frequency and intensity of migraine.”
“The findings of the present umbrella meta-analysis showed an overall decrease of SBP and DBP with magnesium supplementation, particularly at doses of ≥400 mg/day for ≥12 weeks.”
Research describes the active mechanism and is not a claim about this specific product.
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Yes — its active compound is linked to 19 peer-reviewed studies, summarized and cited above.
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Dietary supplements and devices are generally well tolerated but are not a substitute for medical care. Talk to your physician before starting, especially if you take medication or have a health condition.