Three-ingredient capsule (150 mg magnesium bisglycinate, 200 mg L-theanine, 3 mg sustained-release melatonin) designed for menopause-related sleep disruption. Users report falling asleep faster and fewer 3am wake-ups, though some find the melatonin dose too strong. Includes a sleep habits guided journal.
Multiple meta-analyses and RCTs show magnesium supplementation reduces blood pressure in hypertensive populations, improves sleep quality in some cohorts, and may reduce migraine frequency. Observational studies link adequate magnesium intake to lower cardiovascular mortality and better glucose control. The evidence is strongest for hypertension and sleep; weaker for other claimed benefits like anxiety or athletic performance.
Magnesium is a cofactor in over 300 enzymatic reactions, including ATP synthesis, protein synthesis, and neuromuscular function. It modulates NMDA (N-methyl-D-aspartate) receptors and influences calcium handling in cells, affecting muscle contraction, nerve signaling, and bone mineralization.
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Meta-analysis
“The antihypertensive effect of magnesium (Mg) supplementation remains controversial.”
“BACKGROUND: There are inconsistent reports regarding the effect of magnesium intake on blood pressure (BP) across hypertensive and normotensive populations.”
“In this study, we aimed to systematically review the literature to evaluate the effects of magnesium (Mg) supplementation on blood pressure (BP) and obesity measure among patients with type 2 diabetes mellitus (T2DM).”
“BACKGROUND: Magnesium supplementation is often purported to improve sleep; however, as both an over-the-counter sleep aid and a complementary and alternative medicine, there is limited evidence to support this assertion.”
Most RCTs are small to moderate in size. Bioavailability varies widely by form (citrate and glycinate absorb better than oxide). Many studies don't control for baseline magnesium status, so benefits may be largest in deficient populations. Evidence for anxiety, cognitive function, and athletic performance remains limited. Excess supplementation can cause gastrointestinal side effects and may interact with certain medications.
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