CRCT (double-blind, parallel) · 155 adults aged 18 to 65, 4 weeks

Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep: A Randomized, Placebo-Controlled Trial

J Schuster, I Cycelskij, A Lopresti, A Hahn. Nature and Science of Sleep. 2025.

Published 2026-10-15Sources checked 2026-10-151 sourceEverstack research teamHow we work

In plain language: 250 mg elemental magnesium as bisglycinate daily modestly lowered Insomnia Severity Index scores versus placebo (about -3.9 vs -2.3; small effect size).
Limits: Four weeks; self-report scales; one co-author has nutraceutical CRO ties; Leibniz University funded the trial.
Source: doi.org/10.2147/nss.s524348 · PubMed 40918053 · Free full text

Summary written by Everstack from the published abstract. Verified against Crossref on 2026-10-15. The authors do not endorse Everstack.