Drew's+nutrition+hw

1. What is the rationale behind using BMI to judge obesity? If a person’s BMI is higher than 32 they are considered obese

2. What disorders are associated with obesity? Diabetes is associated with obesity

3. Why might carbohydrates be the cause of the obesity epidemic today? The foods are said to have high glycemic index or GI

4. Why might fats be the cause of the obesity epidemic today? It is bad because it carries cholesterol from the liver to the cells.

5. What types of fats are dangerous to our health? Trans-fatty acids

6. What type of fat is protective for cardiovascular disease? Essenial fatty acids

7. Proteins provide the essential amino acids; why shouldn't they be eaten as an energy source? Excess amino acids are not always converted into muscle. Too much protein can also cause loss of calcium in urine.

8. What is the chief contribution of each of these in the body -- carbohydrates, proteins, fats, fruits, vegetables? Carbohydrates provide an energy source. Proteins are used for growth. Fats Can help prevent disease.

9. In general, what does the USDA food pyramid tell you? The food pyramid tells us that we need 6 oz of grains a day, vegetables 2.5 cups a day, 2 cups of fruits everyday, 3 cups of milk, and 5.5 oz of meat and beans everyday.

10. Name and describe four eating disorders. Anorexia nervosa- severe psychological disorder characterized by irrational fear of getting fat that results in the refusal to eat enough food. Bulimia nervosa-binge eating and then purging to avoid gaining weight. Bing-eating disorder-overeating followed by purging. Muscle dysmorphia-thinks body is underdeveloped and is preoccupied with diet and working out.