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correlational
mixed effect

Taking 3 grams of glycine before bed might work differently than sleeping pills like benzodiazepines

Scientific Claim

Glycine ingestion (3 g) before bedtime is associated with different effects on sleep compared to traditional hypnotic drugs such as benzodiazepines in individuals with poor sleep

Source Excerpt

Thus, a bolus ingestion of glycine before bedtime seems to produce subjective and objective improvement of the sleep quality in a different way than traditional hypnotic drugs such as benzodiazepines.

Taking 3 grams of glycine before bed might work differently than sleeping pills like benzodiazepines | Fit Body Science