AMINO · MATERIA №14
L-Glutamine
The amino acid the gut and immune system burn through first.
- Family
- amino
- Origin
- Synthesized + dietary protein
- Format
- Powder
- Best taken
- Post-workout or empty stomach
Glutamine is the most abundant free amino acid in the body. Under stress — heavy training, illness, surgery — demand exceeds supply, and it becomes conditionally essential.
It is the preferred fuel for enterocytes (gut lining cells) and a key substrate for immune cell function.
How it works in the body
Supports the integrity of the gut lining, helps maintain immune cell activity under stress, and contributes to muscle protein synthesis post-training.
What you can expect
Gut lining support
Primary fuel for the cells that line the small intestine.
Good for: gut · recovery
Recovery
Supports muscle and immune recovery after demanding training.
Good for: recovery
04 — PROTOCOL
5 g post-workout or on an empty stomach, mixed in water.
05 — SOURCING
Pharmaceutical-grade L-glutamine, third-party tested for purity.
06 — CAUTION
Generally safe. People with cirrhosis or certain seizure disorders should consult a clinician.
07 — PRODUCTS
Products with L-Glutamine
08 — PAIRS WELL WITH
Build the stack
Honest answers
- When should I take it?
- Post-workout or first thing in the morning on an empty stomach are the most studied protocols.
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