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Exam 8: Vitamins

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Question 21

Multiple Choice

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The main function of vitamin E is to act as a(n) :

A) coenzyme.
B) free radical.
C) fat.
D) antioxidant.

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Question 22

Multiple Choice

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read the paragraph below and indicate whether the athlete's statements are correct or incorrect: A distance athlete explains why he is taking a vitamin E supplement. He states: "Most people don't realize it but oxygen has both beneficial and harmful effects. I try to counter the harmful effects by taking a vitamin E supplement. Most studies have shown that vitamin E supplementation has a positive effect on endurance performance. Besides, recent studies have shown that there is a health benefit to vitamin E supplements. I'm concerned that my vitamin E intake may be low since I purposefully keep my calorie intake low so I don't gain any body fat and I follow a low-fat diet. Someone told me that when you take high levels of vitamin E it actually has an opposite effect and it is no longer works as an antioxidant, but I don't think that is true." -Recent studies have shown that there is a health benefit to vitamin E supplements.

A) Correct statement
B) Incorrect statement

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Question 23

True/False

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If a Tolerable Upper Intake Level (UL) has been established it must appear on the label of a vitamin supplement.

The maximum amount that can be in one vitamin pill or tablet is the Tolerable Upper Intake Level (UL).

Vitamin B6 (pyridoxine) is found in coenzymes that are needed to:

As a rule of thumb, an athlete should choose a supplement that does not exceed _____% of the Daily Value (DV) .

Of the antioxidant vitamins, it is most crucial to consume vitamin C on a daily basis because it is water soluble.

In healthy athletes, an increase in thiamin intake results in an increase in energy production.

Describe the process of evaluation used to determine if an athlete needs to take a vitamin supplement. What is the role of a sports dietitian, certified athletic trainer, and certified strength and conditioning coach at each step in the evaluation process?

indicate whether each vitamin is classified as water or fat soluble. -Vitamin B12

Pantothenic acid is part of co-enzyme A and large amounts of it increase the rate of energy production.

Which source contains the purest chemical form of vitamin C?

In general, when an athlete's energy intake is adequate, vitamin intake is usually:

According to the current body of scientific research, what is known about vitamin A toxicity?

indicate whether each vitamin is classified as water or fat soluble. -Vitamin C

Which antioxidant vitamin listed depends on vitamin C for regeneration after it has been oxidized?

Which of the following functions is shared by beta-carotene and vitamin E?

The fat-soluble vitamins are vitamins A, D, E, and K.

Both low and high levels of antioxidant vitamins are harmful but for different reasons.

By law, a vitamin supplement cannot contain a dose in one pill or tablet that is higher than the Tolerable Upper Intake Level.