Monsodium Glutamate
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What it is
Monosodium glutamate (MSG) is the sodium salt of glutamic acid, an amino acid naturally found in many foods. It is produced commercially through the fermentation of carbohydrates, similar to how yogurt or wine is made.
Why it's used
MSG is used as a flavor enhancer to add an umami taste, which is a savory flavor distinct from sweet, sour, salty, or bitter. It is commonly found in processed foods such as soups, salad dressings, snacks, and savory spice blends.
Health notes
In the U.S., MSG is generally recognized as safe (GRAS) by the FDA. Some individuals report sensitivity to MSG, experiencing symptoms like headaches or flushing, though scientific studies have not consistently shown a link between MSG consumption and these symptoms in the general population. JECFA and EFSA have evaluated MSG and established specifications for its use. The FDA requires MSG to be listed on ingredient labels.
Allergen info
Not a major allergen.