Arginine

Arginine is a semi-essential amino acid with various functions in the body. Although the body can synthesize arginine from glutamine and proline, its own production is often not sufficient. That is why it is important to get arginine through food or supplements. Dietary sources of arginine include nuts, seeds, legumes and meat.
Arginine was first isolated from food in the nineteenth century. Nowadays it is often used as a supplement by people with an active and sporty lifestyle.