| Nutrients | The life sustaining substances found in food. Necessary for growth, maintenance, and repair. |
| Nutrition | The study of how nutrients affect our body. |
| Diet | A person's usual pattern of food choices. Everyone has a diet, and you don't begin and end diets, you just make changes to your existing diet. |
| Lipid | Fat |
| Organic | An organic substance contains *carbon*, and can be degraded. |
| Essential nutrient | A nutrient is considered *essential* if it *must* be supplied by food, because the body cannot create it in sufficient quantities. If an essential nutrient is missin |