The primary purpose of protein in the diet is to support growth, repair, and maintenance of body tissues, including muscles, organs, and skin. Proteins are made of amino acids, which are the building blocks that contribute to various physiological functions. They play a significant role in the production of enzymes, hormones, and other essential molecules. Adequate protein intake is crucial for individuals involved in physical activity or exercise as it aids in recovery and muscle synthesis. Including a variety of protein sources in the diet is essential for overall health and well-being.