1.5/5
Very weak
evidence
Recovery evidence brief
Glutamine
Healthy, well-fed lifters are unlikely to see meaningful performance, muscle-gain, or recovery benefits.
Headline Finding
Athletic-performance meta-analysis and reviews do not support meaningful benefits for healthy, well-fed lifters.
Dose Context
Not recommended as a first-line gym supplement.
Important Caveat
Clinical and gut-stress contexts are separate from general gym-performance claims.
Source Drawer
Linked Research
- Meta-analysis Athletic performance meta-analysis
- Review Exercise review record
- Review ISSN sports nutrition review
- Review Exercise review DOI
- Trial Exercise immunity RCT
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
Spot An Evidence Issue?
Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.
Report a source or rating issue