Supplements for muscle building


L-Glutamine is the most abundant free amino acid in human plasma and muscle cells. It is a semi-essential amino acid, meaning that the body makes glutamine itself (mainly in muscle, liver, adipose tissue and brain), but under certain circumstances (major physical exertion, recovery) exogenous intake of glutamine may be beneficial. L-glutamine is also present in foods such as meat, poultry, fish, eggs, milk, legumes, ...

Glutamine has numerous functions in the body; protein synthesis, muscle building, glycogen synthesis, immune function, intestinal barrier function, acid-base balance, ...

Amino acids, such as Glutamine, are the building blocks of proteins and proteins contribute to the growth and maintenance of muscle mass. Glutamine supplies nitrogen to muscles, among other things, and thus helps maintain nitrogen balance. This is beneficial for reducing muscle breakdown, promoting muscle recovery and protein synthesis.

Athletes, especially endurance athletes or those who exercise very intensively, demand a lot from their bodies. It is known that prolonged and very intense exercise is associated with a decrease in intramuscular and plasma concentrations of glutamine, which would be detrimental to immune function. For example, studies show that glutamine supplementation would reduce the incidence of disease in endurance athletes.

Etixx L-Glutamine drink is a high-quality Glutamine powder with neutral taste, with no added sugars or fats.

Who can benefit from Etixx L-Glutamine?

L-Glutamine is often used by athletes doing bodybuilding, strength training, athletics or other intense sports. These are athletes from disciplines where muscle breakdown and muscle damage are more common and/or who aim to build muscle more often compared to other athletes. In addition, endurance athletes can also use glutamine, mainly because glutamine is important for immune function and intestinal barrier function (cf. leaky gut).


Mix 1 heaped scoop (5 g) with 250 ml of water or add to your protein shake or sports drink.


This powder preparation with glutamine for a drink is intended for sportspeople. A varied and balanced diet and a healthy lifestyle are important. Suitable for persons as of 13 years of age. 



Gluten-free - lactose-free - soy-free -vegetarians √ - vegans √

Nutritional information

Nutritional values

Per 100 g

Per 5 g

Energy (kcal)



Energy (kJ)



L-Glutamine (g)



Contains negligible amounts of fats, saturated fatty acids, carbohydrates, sugars and salt.

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