Glutamine: for recovery and the gut
2026-06-27 · 4 min read
L-glutamine is the most abundant amino acid in the body. It is heavily marketed to athletes, but for most healthy people with a normal diet the effect is modest.
What it does
Glutamine takes part in muscle recovery, immune function and gut-lining health. It is “fuel” for gut cells, so it is sometimes used to support the digestive tract.
Who benefits
Glutamine gives real benefit under heavy load, strict diets and gut issues. A healthy person with enough dietary protein already gets glutamine from food.
How to take it
A usual serving is about 5 g, after training or before bed. Glutamine is flavorless and mixes easily into a protein shake or water.
FAQ
Does glutamine build muscle?
In healthy people with enough protein there is usually no clear direct effect on muscle growth. For mass, protein, creatine and training matter more.
Is it worth buying glutamine separately?
On a tight budget — protein and creatine first. Glutamine makes sense under load, on diets, or to support the gut.
Related sections
This article is for information only and is not a substitute for professional advice. Supplements are not medicines.