D-Aspartic Acid (D-AA) is a non-essential amino acid. That means your body produces a functional amount of it internally.
Amino acids are the building blocks of protein and serve various functions in the body during childhood development and throughout adulthood. D-Aspartic Acid plays a role in metabolic support.* According to one study, D-AA supplementation may also support increased testosterone levels.*D-AA is formed when the enzyme aspartate racemase converts an L-Aspartic Acid into D-AA in the testes and glands. It is one of 20 proteinogenic amino acids, which are the building blocks of proteins. It was discovered in 1827 by Plisson, a French pharmacist, by boiling asparagus and treating it with hydrochloric acid. (Crazy, right?)
One human study testing D-Aspartic Acid suggested that the amino acid boosted testosterone and luteinizing hormone release when taken over a 12-day period.*
D-Aspartic Acid is found naturally in the testes, pituitary gland and hypothalamus, all of which are involved in hormone production. The study found that D-AA has a role in the regulation of the release and synthesis of LH and testosterone in humans.*