Dietary protein is an essential nutrient that plays a crucial role in building and repairing tissues in the body. It is made up of smaller units called amino acids, which are necessary for various bodily functions, including hormone production and immune response. Foods rich in protein include meat, fish, eggs, dairy products, legumes, and nuts. The recommended daily intake of protein varies based on age, sex, and activity level. For most adults, it is suggested to consume about 46 to 56 grams of protein per day. Including a variety of protein sources in your diet can help ensure you receive all the essential amino acids your body needs.