Glutamic Acid – Uses, Benefits, Sources and Dosage Glutamic acid is considered as the essential amino acid for the protein synthesis. It is in the same amino acids family as glutamine and they can change their structure to transform into each other. Glutamic acid offers the several health benefits and maintains the healthy functioning of body. It supports the good health of immune system, digestive system as also aids in the energy production in the body. Everyday approximately 80 g