I also kept wondering if autolyzed yeast, etc. was really MSG. This explained it to me. It is from this site:
http://www.holisticmed.com/msg/msg-basics.txt"MSG is manufactured through a process of protein hydrolysis. When
a product is 99% pure MSG, the product is called "monosodium
glutamate" by the FDA and must be labeled as such. However, when a
hydrolyzed protein contains less than 99% MSG, the FDA does not
require that the MSG be identified. "Autolyzed yeast," "hydrolyzed
soy protein," and "sodium caseinate," are examples of names given
to hydrolyzed proteins on food labels.
Under FDA regulation, hydrolyzed protein products may be used as
ingredients in other products without mention of the original
hydrolyzed protein product. For example, "hydrolyzed soy protein,"
when used in "flavoring(s)," "natural flavoring(s)," "natural
flavor(s)," and products called broth, bouillon, or natural chicken
flavoring, etc., does not have to be mentioned on product labels
when the food processor claims that the hydrolyzed protein is being
used for purposes other than flavoring. "Hidden Sources of MSG"
lists some of the ingredients presently used to hide MSG.
Use of MSG in food is growing. MSG is found in most soups, salad
dressings, and processed meats; in some crackers, bread, canned
tuna fish, most frozen entrees, ice cream, and frozen yogurt. It
is often used in "low fat" foods to make up for the flavor lost
when fat is reduced or eliminated."
