D Aspartic Acid is an amino acid that is formed principally in the pituitary gland, hypothalamus, and testes. It plays an important role in the production of compounds associated with libido and tissue growth. D Aspartic Acid stimulates the production of signal molecules which in turn enhance the activity in your testes as well as your pituitary gland. From an athletic perspective this allows your body to produce the compounds that help increase lean growth, strength, power and energy. In one particular study, researchers provided a group of males (aged 27-37) a daily dose of 3.12 grams of D Aspartic acid for twelve consecutive days. The growth compound level in the subjects that received the supplement had risen by 33% after the twelve days. The results of this study have massive implications for those looking to improve their athletic potential and also to improve their body shape with lean tissue.