Monosodium Glutamate:: August 31, 1995 Monosodium glutamate (MSG) is used as a flavor enhancer in a variety of foods prepared at home, in restaurants, and by food processors. Its use has become controversial in the past 30 years because of reports of adverse reactions in people who've eaten foods that contain MSG. Research on the role of glutamate--a group of chemicals that includes MSG--in the nervous system also has raised questions about the chemical's safety. The brain. Consumption of glutamate in food, however, does not cause this effect. While people normally consume dietary glutamate in large amounts and the body can make and metabolize glutamate efficiently
MSG is the sodium salt of the amino acid