L-Arginine 1500 Capsules 120 Capsules | 100g | 60 Servings Food Supplement L-Arginine is a non-essential amino acid which means it can be produced by the body as well as obtained through the diet. Foods such as soya, chicken, and beef are good sources of Arginine. In some individuals, the of Arginine needed can be greater than the amount that can be produced by the body or consumed in the diet.