Flavor Enhancer: Monosodium Glutamate

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 like corn starch, sugar beets, or sugarcane.

MSG is used as a flavor enhancer to add an umami taste, which is a savory, brothy flavor. It is commonly found in processed foods such as soups, snacks, sauces, and frozen meals.

In the US, 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 linked these symptoms to MSG consumption at typical levels. JECFA and EFSA have evaluated MSG and established acceptable daily intakes. The WHO/IARC has classified glutamate as not classifiable as to its carcinogenicity to humans.