Primary Research · 2007
Glycine ingestion improves subjective sleep quality in human volunteers
Yamadera W, Inagawa K, Chiba S, et al. · Sleep and Biological Rhythms, 2007
Key finding
Crossover RCT showed 3g glycine 30–60 minutes before bed improved subjective sleep quality, sleep-onset latency, and next-day fatigue vs placebo in self-reported mild insomnia subjects.
About the supplement
Glycine
Dose · mechanism · evidence grade · safety →
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