L-threonine L-lysine

L-threonine and L-lysine are essential amino acids, meaning the body cannot produce them and they must be obtained from food. They are often produced industrially through fermentation using microorganisms. These amino acids play vital roles in protein synthesis and other metabolic processes.

These amino acids are primarily added to foods as nutritional supplements to boost protein content or to meet specific dietary needs. They are sometimes found in energy drinks, sports nutrition products, and fortified foods. Their addition helps to enhance the overall nutritional profile of the product.

L-threonine and L-lysine are generally recognized as safe (GRAS) by the FDA when used as nutrients. They are fundamental building blocks of protein and are essential for human health. International bodies like JECFA have evaluated amino acids, and they are considered safe when consumed at typical dietary levels. No significant controversies or safety concerns are associated with their use as food ingredients.