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correlational
positive effect
Taking 3 grams of glycine before bed might help people who have trouble sleeping feel less sleepy during the day and remember things better.
Scientific Claim
In individuals with chronic poor sleep quality, ingestion of 3 grams of glycine before bedtime was associated with reduced daytime sleepiness and improved memory recognition task performance.
Source Excerpt
“Glycine lessened daytime sleepiness and improved performance of memory recognition tasks.”