Question

Which statement about vitamins is true:

	A.	Vitamins contain energy
	B.	If an athlete feels fatigued it is more likely due to inadequate calories or carbohydrates than inadequate vitamins
	C.	It is difficult for an athlete to get adequate vitamins from foods
	D.	Athletes need at least 200% of the RDA for vitamins to meet their requirements

1. Which statement about calcium is false:

   	A.	If peak bone density is not achieved by age 35, it cannot be achieved later in life.
   	B.	Calcium from the bones is used to maintain the calcium level in the blood.
   	C.	Green vegetables are the most concentrated source of dietary calcium.
   	D.	Low estrogen level causes decreased calcium absorption in the bones.

You are most likely to exceed the upper safe limit (UL) for vitamin A by

	A.	eating a high fat diet
	B.	eating too many vegetables
	C.	taking high dosage vitamin A pills
	D.	eating large amounts of meat

Answer 1

1. Correct option is. C It is difficult for an athlete to get adequate vitamins from foods . Because everyone doesn't have same eating habbits and lifestyle . So , they take supplements.
a . Vitamins help to convert food into glucose which gives us energy but they do not have energy.
b. Vitamins deficiency will cause fatigue.

2. Correct option is A.If peak bone density is not achieved by age 35, it cannot be achieved later in life. Because some one over 50 years old with proper guidance and lifestyle changes can increase calcium bone density but it is difficult but not impossible.   

3. Correct option is

C.	taking high dosage vitamin A

It may result in toxicity also .