E620 is a food additive known as monosodium glutamate (MSG). It is commonly used as a flavor enhancer in various foods, particularly in Asian cuisine. E620 is recognized for its ability to intensify savory flavors, making dishes taste richer and more appealing. In addition to its culinary uses, E620 is often found in processed foods, snacks, and seasonings. While it is generally considered safe for consumption, some individuals may experience sensitivity to MSG, leading to symptoms like headaches or nausea. Regulatory agencies, such as the FDA, have deemed it safe for the general population when consumed in moderation.