NAF ENERG SHOT 30ML. EnerG Shot is a concentrated nutritional blend of essential amino acids and bio-available iron to support energy metabolism, red blood cell production and to help replace sweat losses. It comes in an easy to administer syringe, making it easy to feed when most needed. When to feed: Prior to any peak performance requirement for optimum energy. Ingredients: Water, l-Tyrosine, dl-Phenylalanine, l-Argine, l-LysineHCl,Glycine, Starch, Iron sulphate, Potassiumsorbate.