A. Calcium B. Carbohydrates C. Fiber D. Iron E. protein 1. These are also called "energy-giving foods. 2. It prevents constipation and other intestinal problems, and reduces the risk of heart diseases. 3. It is needed for bone development and for the regulation of vital body functions. 4. It is important for proper fucntioning of cells and for resistance to infection. 5. The body-building food which is necessary for the growth and development of our body especially the bones and muscles.