Which of the following is a characteristic of vitamin D ...

[Awilson837]

Which of the following is a characteristic of vitamin D nutrition?
 
  a. Vitamin D deficiency may be created by a calcium deficiency
  b. Only about one-half of the world's population relies on sunlight to maintain adequate vitamin D nutrition
  c. Prolonged exposure to sunlight degrades the vitamin D precursor in skin, thus preventing vitamin D toxicity
  d. In people living in northern U.S. cities, vitamin D stores from synthesis during the summer are usually sufficient to meet the needs during the winter
  e. Pigments in dark skins increase vitamin D synthesis.

Question 2

Which of the following is a feature of vitamin D?
 
  a. The bioavailability of vitamin D from soy milk is low
  b. Lifeguards on southern beaches have increased risk for vitamin D toxicity
  c. Most adults living in the southern United States need small amounts of dietary vitamin D
  d. The average consumption in the United States does not meet the recommended intake
  e. Taking vitamin D on an empty stomach improves absorption by as much as 50.

[zhanghao]

Answer to Question 1

ANS: C

Answer to Question 2

ANS: D

[Awilson837]

TYSM

[isabelt_18]

Excellent