Sodium glutamate, often referred to as monosodium glutamate (MSG), is a flavor enhancer commonly used in cooking. It is the sodium salt of glutamic acid, an amino acid that occurs naturally in many foods, such as tomatoes and cheese. MSG is known for its ability to enhance umami, one of the five basic tastes, which gives food a savory flavor. In addition to its culinary uses, sodium glutamate is also found in various processed foods, including snacks, soups, and sauces. While it is generally recognized as safe by food safety authorities, some individuals report sensitivity to MSG, experiencing symptoms like headaches or nausea after consumption.