👉 Casein is a type of protein found in milk, which is an essential nutrient for human health. It is composed of two chains of amino acids, Lysine and Methionine. The first chain of amino acids forms the building blocks of proteins, while the second chain provides the necessary energy for protein synthesis. Casein is commonly used as a feedstock for livestock production in agriculture, where it is processed into milk or cream to be consumed by humans. It is also used in other applications