Aspartic acid: An amino acid, one of the 20 building blocks of protein. A amino acid that is not essential to the human diet, aspartic acid was discovered in protein in 1868. It has a role as a neurotransmitter. Symbol: Asp.
Quick GuideFat-Burning Foods in Pictures: Blueberries, Green Tea, and More
Subscribe to MedicineNet's Weight Loss/Healthy Living Newsletter
Nutrition and Healthy Eating Resources
Last Editorial Review: 6/9/2016