Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel, proteins provide as much energy density as carbohydrates. It is commonly found in animal products, though is also present in other sources, such as nuts and legumes. It is important because proteins are amino acids that are essential for our bodies to function properly. It also helps build and maintain bones, muscles and skin.
