L Glutamine

L-glutamine is a naturally occurring amino acid, one of the 20 building blocks of proteins. It is found in many foods, including meat, fish, eggs, dairy products, beans, and spinach. It can also be produced industrially through fermentation processes using bacteria.

L-glutamine is often added to protein powders and shakes, particularly those aimed at athletes or for meal replacements. It is sometimes included for its perceived role in muscle recovery and gut health, although scientific evidence for these specific benefits in healthy individuals consuming a balanced diet is mixed.

L-glutamine is not currently listed as an authorised food additive on the Register of Food Additive Authorisations in Great Britain. It is naturally present in many protein-rich foods. Some research has explored its potential therapeutic uses, but robust evidence for significant health benefits in the general population from dietary supplementation is limited.