The document discusses different nutrients including proteins, fats, carbohydrates, vitamins and minerals. It provides information on the functions and sources of these nutrients. It notes that proteins are needed for growth and repair, excess protein can be used as energy, and sources include peas, beans, lentils and meat. Carbohydrates provide the main source of energy and include starches and sugars, with starches found in foods like pasta. The document also contains quizzes to test knowledge of nutrients.