MONOSODIUM GLUTAMATE:  WHAT IS IT?

By Tammy Kliethermes, 
Missouri Department of Health

	Here's everything you wanted to know about monosodium glutamate, commonly known as MSG. MSG is the sodium salt of glutamate. Glutamate is an amino acid essential for metabolism and brain function and is manufactured by the body. It is found in almost every protein food we eat. Glutamate occurs naturally in protein-containing foods such as cheese, milk, mushrooms, meat, fish, and many vegetables like tomatoes. When MSG is added to foods, it provides a similar flavoring function as the glutamate that occurs naturally in food.

	MSG is used as a flavor enhancer to many foods. It is made from starch, corn sugar or molasses from sugar cane or sugar beets. A natural fermentation process, much like that used to make beer, vinegar, or yogurt, produces MSG.

	Some people feel they are sensitive to MSG, developing headaches and other symptoms. However, current research has not found a link between MSG and these reactions. MSG is safe for consumption as stated by the US Food and Drug Administration. It is even safe for infants as human breast milk contains glutamate.

	When purchasing foods, check the nutrition label ingredient list for MSG. Also, flavoring your household foods with MSG can invite a savory taste into your home. As a general guideline, about half a teaspoon of MSG per pound of meat, or four to six servings of vegetables should be sufficient.