Best Fit Profiles
- evening recovery stacks
Sleep quality and metabolic recovery support
Glycine
Small human trials suggest glycine may improve subjective sleep quality and next-day fatigue, with low-to-moderate certainty.
Evidence Level B
Evidence and Risk Labels
Evidence A/B/C reflects research maturity, and risk levels reflect monitoring needs. These labels support comparison, not diagnosis or treatment decisions.
See full scoring guideClinical Snapshot
- Effect Size
- Small sleep-quality and next-day recovery support
- Safety
- Low Risk
Can increase sedation when layered with multiple sleep-directed compounds.
Research Dosing
This reflects common ranges and protocols used in published studies, not personal medical advice.
- Typical Daily Dose
- 3-5 g
- Timing
- 30-60 minutes before bedtime
- Protocol Duration in Studies
- 2-8 weeks in sleep-oriented interventions
Most sleep protocols use pre-bed dosing rather than daytime use.