One reason it is difficult to establish recommended requirements for vitamin D is because:

a. individual exposure to sunlight varies greatly.
b. it is present in so many foods.
c. individuals store it in large quantities.
d. the amount in food varies with the season.


ANS: A

Nutritional Science

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a. complete proteins. b. incomplete proteins. c. inadequate proteins. d. very important proteins.

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Which of the following is considered the MOST risky during pregnancy?

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a. folate b. thiamin c. antidiuretic hormone d. alcohol dehydrogenase e. protein

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