Give any 2 reasons why people may NOT want to take supplements ...

[TVarnum]

Give any 2 reasons why people may NOT want to take supplements that contain beta-carotene or vitamin E.

Question 2

A person who is trying to gain weight and muscle mass will achieve the best outcome by:
 a. reducing physical activity, because it burns too many calories.
 b. choosing nutrient- and energy-dense foods to help build new body tissue.
 c. limiting food intake to three large meals a day to eat more calories at a time.
 d. adding weight-gain supplements specially formulated for muscle building.
 e. selecting high-fat foodssuch ascandy bars and potato chips because they provide the most fuel for workouts.

[kaylee05]

Answer to Question 1

Both vitamin E and beta-carotene have antioxidant properties that may help promote cardiovascular health.
It has been suggested that people who take vitamin E supplements may reduce their risk of cardiovascular disease, but early studies supporting this view may not have accounted for variation in the subjects such as illnesses or smoking histories. A large study that closely examined other studies of vitamin E intake versus cardiovascular disease found that increased vitamin E intakes are not protective and may actually cause more harm.
It has been suggested that increased intake of beta-carotene may reduce the risk of developing certain cancers such as lung cancer in smokers. Studies have shown that people taking beta-carotene supplements may be at increased risk for damage to their DNA, which can lead to cancer development, and that beta-carotene supplement intake in smokers actually increased the rate of lung cancer.
Foods provide lower levels of vitamin E and beta-carotene in association with other nutrients; thus, with foods there is less risk of effects from excessive amounts of either of these two nutrients alone.

Answer to Question 2

b