Amino Acid Synergy from Designs For Health is useful as a general supplement for individuals whose diets may be insufficient in quality protein, such as athletes who require additional amino acids to maintain or achieve greater lean body mass or for individuals who have confirmed amino acid deficiencies from metabolic testing. Amino Acid Synergy provides a mixture of essential amino acids in the free-form, meaning they are immediately available for absorption and can be put to metabolic use much more readily and rapidly as compared with amino acids contained in dietary protein.