Glycine
supplementSleep / recovery
Research status · Dietary supplement
Dietary supplement / amino acid.
A simple amino acid discussed for sleep quality, often taken before bed. Small studies suggest improved subjective sleep; it's inexpensive, mildly sweet, and well tolerated.
How it works
Inhibitory neurotransmitter that may lower core body temperature slightly, supporting sleep onset.
Commonly discussed use cases
- Sleep quality (discussed)
- Paired with magnesium in wind-down routines
Supposed / potential benefits
- Reported improvements in subjective sleep quality in small trials
Common side effects
- Well tolerated; mild GI upset possible
Warnings & contraindications
- Evidence base is small — track your own sleep rating and judge honestly
Typical timing considerations
30–60 minutes before bed.
Administration route
Oral (powder/capsule)
Questions to ask your clinician
- Anything about my sleep worth investigating before supplements?
Commonly tracked in Reta
Tracking fields organize user-entered, clinician-directed routines — Reta never recommends or computes doses.
Sources
Track this in Reta
Beta members get a ready-made tracker for Glycine — schedule, dose log, reminders, and check-ins — for organizing a clinician-directed routine. Personal tracking is available to everyone during the Public Beta.
Reta is a tracking and education tool — not a medical provider. Nothing here is a diagnosis, treatment, prescription, or dosing recommendation. Peptides and medications should only be used under the direction of a licensed clinician. Talk to a qualified clinician before starting, stopping, combining, or changing anything. Many compounds below are not FDA-approved for human use; some are investigational or sold through unregulated channels where purity and dosing are not guaranteed.