Studies related to and

Subjective effects of glycine ingestion before bedtime on sleep quality
Effect Decrease
Trial Design Double blind
Trial Length 1-7 Days
Number of Subjects 15
Sex Female
Age Range 18-29, 30-44
Body Types Average
Notes for this study:
Supplementation of 3g glycine for 4 days in a pilot study (double blind crossover) in women without sleep disturbances found that glycine was associated with greater self-reported sleep quality as assessed by the PSQI and the SAM fatigue checklist.

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