In the food industry, amino acids serve as powerful tools for improving taste, texture, and nutritional value. Glutamic acid, for instance, is widely used as monosodium glutamate (MSG) to enhance umami flavor in soups, sauces, and processed foods. Meanwhile, lysine and methionine are frequently added to fortify plant-based proteins, ensuring a complete amino acid profile in vegetarian and vegan products. Beyond flavor, amino acids like glycine and proline act as natural preservatives, extending shelf life while maintaining food quality. Their ability to support fermentation also makes them vital in producing cheese, yogurt, and fermented beverages. By integrating amino acids into food formulations, manufacturers can create products that are not only delicious but also nutritionally balanced.