Valine is one of the essential amino acids, which means that the body cannot produce it on its own and must obtain it from food sources. It plays a crucial role in muscle metabolism, tissue repair, and maintaining proper nitrogen balance in the body. Valine is commonly found in protein-rich foods such as meat, dairy products, and legumes. In addition to its role in muscle health, valine is important for energy production and can help support cognitive function. It is often included in dietary supplements, especially those aimed at athletes and bodybuilders, to enhance performance and recovery after exercise.