protein

Proteins are large, complex molecules essential for most biological functions. Made up of smaller units called amino acids linked together in specific sequences, they serve as the building blocks for tissues like muscles, skin, and enzymes that facilitate chemical reactions. Proteins are involved in processes such as repair, growth, immune response, and signaling within the body. They are found in many foods, including meat, dairy, beans, and nuts. The unique arrangement of amino acids determines a protein's structure and function, making proteins vital for maintaining health and supporting life processes.