There are six essential nutrients: 1. Proteins 2. Carbohydrates 3. Fats 4. Water 5. Minerals 6. Vitamins Protein builds muscles & a strong immune system. Carbohydrates (including starches and sugars) give you energy. Fats give you extra energy. Vitamins & Minerals regulates body processes. Water gives cells shape & acts as a medium in which body processes occur