Aspartic acid – Uses, Benefits, Sources and Dosage Aspartic acid is one of 20 proteinogenic amino acids. It is a non essential amino acid which means that body can produce this amino acid in the liver from food sources. It is found in the large quantities in brain, as it increases the neurologic activity. It plays a vital role in the metabolism and considered as the one of protein building block. During citric acid cycle, aspartic acid helps in the