Glycine
Non-essential amino acid that cools core body temperature and deepens slow-wave sleep — remarkably safe and cheap.
Dosage
Recommended
3 g before bed
Upper limit
30 g/day (well tolerated)
Key Benefits
- 01Reduces core body temperature to initiate sleep
- 02Improves sleep quality without drowsiness
- 03Supports collagen synthesis
- 04Mildly antidepressant via NMDA modulation
- 05Reduces daytime sleepiness after poor sleep
Available Forms
Safety Notes
- —Clozapine (theoretical — NMDA)
- —Minimal interactions known
This reference is for informational purposes only. Consult a qualified healthcare provider before starting any supplement.
Related content
Guide
Glycine Sleep Randomized Trial: What the Evidence Says
Guide
The Evidence-Based Sleep Stack: Magnesium, Glycine & L-Theanine
Guide
Glycine Sleep Meta-analysis: What the Evidence Says
Answer
What does the evidence say about Glycine Sleep Randomized Trial?
Answer
Is Glycine Sleep Randomized Trial safe?
Answer
Does Glycine Sleep Randomized Trial work?
Data
Glycine Sleep Randomized Trial Evidence Table
Data
Glycine Sleep Meta-Analysis Evidence Table