Everyone wants a thin and muscular body. But it is not enough to wish if want to get it. You have to submit to a strict diet as well as training program that will bring mental and body strength to strain. To help meet these requirements, Essential Amino Energy from Optimum Nutrition, combines an optimal ratio of free amino acids absorbed quickly, particularly Branched Chain Amino Acid (BCAA) for muscle development, and arginine to further stimulate vascular tone, with natural energizers, beta-alanine and ingredients stimulating the production of nitric oxide - to allow you to challenge yourself. All this for only 10 calories per serving to make an impression without making sprained your diet. Eat Essential Amino Energy alone, or mixed with your favorite powdered supplements as soon as you want to boost your concentration, physical energy or the production of nitric oxide and recover faster. Benefits It stimulates protein synthesis. Reconstitute glycogen stores Reduce muscle breakdown. Increase energy for better strength intensity of training Improve muscle recovery. An optimal muscle growth Improved performance.