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correlational
positive effect
Taking 3 grams of glycine before bed might help people fall asleep faster, according to sleep monitoring equipment
Scientific Claim
Glycine ingestion (3 g) before bedtime is associated with reduced sleep onset latency as measured by polysomnography in individuals with poor sleep
Source Excerpt
“Glycine improved subjective sleep quality and sleep efficacy (sleep time/in-bed time), and shortened PSG latency both to sleep onset and to slow wave sleep without changes in the sleep architecture.”