Proteins are essential biochemical compounds that help keep the body alive and healthy. They maintain a healthy lifestyle by keeping us healthy and are found in meats. Our daily protein needs depend on factors like age, size, and activity level. Common healthy sources of protein include fish, chicken, meat, eggs, nuts, and beans. Nutrients like carbohydrates, proteins, fats, vitamins, and minerals are essential for the normal functioning of the human body. They provide energy and building blocks for cells and play important roles like metabolism.