| A | B |
|---|
| Nutrition | The study of foods, their nutrient and chemical composition, and their effects on the human body. |
| Nutrients | any chemical substance found in foods, which are usable and needed to sustain life |
| Calorie | the unit of energy amounts in foods |
| "Empty" calories | foods very high in calories, but low in nutritional value (ex. soda, candy bars, doughnuts, chips etc.) |
| Nutritional density | ratio of nutrients; calorie yield |
| Metabolism | All the chemical activity in your body (digestion, Respiration, excretion etc.) |
| Organic | Natural, "living", healthy, Anything which contains carbon and hydrogen |
| Essential Nutrients | Nutrients needed for proper health and must be taken in through the foods eaten |
| Non-essential nutrients | still needed, but the body can synthesize from other sources |
| Antioxidants | chemicals which react and block "free radicals" |
| Photonutrients | plant chemicals with health implications |
