| A | B |
| Anorexia Nervosa | An eating disorder that causes people to starve themselves because they believe they are too fat. |
| Behavior Modification | Making permanent changes in eating habits to help a person reach or maintain a desired weight. |
| Body structure | Size and shape of your bones. |
| Bulimia | An eating disorder in which people feel they are too fat but cannot control their eating urges, so they eat large quantities of food and then vomit or take laxatives. |
| Calories | Units of energy or body fuel provided by carbohydrates, fats, and proteins in foods. |
| Dieting | Following a food plan to help a person lose, maintain, or gain weight. |
| Energy balance | Taking in a number of calories equal to the number of calories burned by that person. |
| Fad diet | An unsafe diet plan that promises quick weight loss at the expense of malnutrition. |
| Fasting | Going completely with food for a certain amount of time. |
| Healthy Weight | Weight that is appropriate for someone of your age and height. |
| Obese | At least 20% above normal weight. |
| Overweight | At least 10% above normal weight. |
| Pinch test | A test used to measure the amount of fat stored under a person's skin. |
| Underweight | Weight less than normal for a certain height and body build. |
| Weight control | Achieving and maintaining a healthy weight. |