Monosodium Glutamate (MSG) is a sodium salt of the amino acid glutamic acid, which is naturally found in many foods. Glutamic acid is also produced by the body. MSG itself is a white, odorless, and crystalline solid that is highly soluble in water.
MSG can be a useful tool for reducing sodium intake in food. Because it is so potent, a small amount of MSG can provide the same umami taste as a larger amount of salt. This can be helpful for people who are on a low-sodium diet.
MSG can also help to make food more flavorful and enjoyable. This can be especially helpful for people who have taste disorders or who are following a bland diet.
It is naturally found in some foods like tomatoes and cheese.
