Glutamine is considered a semi-essential amino acid because in certain circumstances the human body cannot produce enough of the substance in order to meet our needs and especially those of sportsmen.

Glutamine is the most common amino acid in the blood and muscular tissue and it contributes to numerous physiological processes in the human body.


Glutamine has an anti-catabolic effect and it stimulates muscle regeneration after the training. (1)
In addition, glutamine is a powerful anti-oxidant: people who use it also have a better resistance to colds. Athletes also experience more power and better stamina. (2) (3)

Glutamine also slows down the aging process.

Glutamine is used as a key ingredient in SynTsize RecoveryProXtend and L-Glutamine 400g

Roth E, Karner J, Ollenschlager G. Glutamine:an anabolic effector.J Parenter Enteral Nutr 1990;14 (4 Suppl):130S-6S.
Can J Physiol Pharmacol. 1998 May;76(5):524-32. Glutamine and the effects of exhaustive exercise upon the immune responseNutrition.1997 Jul-Aug;13(7-8):738-42.The effects of oral glutamine supplementation on athletes after prolonged, exhaustive exercise.