Amino & PerformanceNo.054
GABA
Relaxation and sleep (marketed).
Typical / RDA100–200 mg
Upper limitGenerally safe
EvidenceLimited
How to take it
Timing EveningFood OptionalForm Oral GABA
What to know
A calming brain chemical sold as a supplement — but it's unclear how much oral GABA crosses into the brain, so any effect may be indirect. Evidence is limited.
Interactions & cautions
- May add to sedatives or BP medication.
Do you actually need it?
Oral absorption into the brain is questionable.
Reference values: NIH Office of Dietary Supplements, adult general population. Educational information only — not medical advice. Confirm with a healthcare professional.