E622, also known as sodium glutamate, is a flavor enhancer commonly used in food products. It is derived from the amino acid glutamic acid and is often found in processed foods, snacks, and seasonings. E622 enhances the umami taste, which is one of the five basic tastes, alongside sweet, sour, bitter, and salty. This additive is generally recognized as safe by food safety authorities, but some individuals may experience sensitivity to it. E622 is often associated with the term MSG (monosodium glutamate), which is a similar compound used for the same purpose in cooking and food production.