| A | B |
| proteins | build and repair body tissue. Also source of energy |
| carboyhydrates | source of energy for life activities |
| fats and oils | sorce of stored energy for life activities |
| calcium | proper formation of bones and teeth,normal muscular activity, blood clotting |
| phosphorus | important in structure of bone,essential to energy transfer and storage |
| iron | makes up part of hemoglobin; important respiratory enzymes and other enzymes |
| iodine | makes up thyroid hormones |
| water | solvent in which chemical reactions take place; transport of materials |
| vitamins | necessary for healthy body -coenzymes-enzymes cannot function properly without them |
| zinc | important in protein digestion; may be important in wound healing |
| sodium | important in fluid balance; essential for conduction of nerve impulses |
| potassium | influences muscle contraction and nerve action |
| minerals | important in building body parts. Help regulate body functions |