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

Quizplus · Accepted Answer

Prolonged exposure to sunlight does not lead to vitamin D toxicity because the body regulates the amount of vitamin D precursor converted in the skin, preventing excess.

Which of the Following Is a Characteristic of Vitamin D