Natural proteins are large, complex molecules made up of long chains of amino acids. They are essential for the structure, function, and regulation of the body's tissues and organs. Natural proteins can be found in various sources, including meat, fish, dairy products, beans, and nuts. These proteins play crucial roles in biological processes, such as building and repairing tissues, producing enzymes and hormones, and supporting immune function. Unlike synthetic proteins, which are artificially created, natural proteins are derived from living organisms and are vital for maintaining overall health and well-being.