Each of the Following Is True of Vitamin D Requirements

Multiple Choice

Each of the following is true of vitamin D requirements except one. Which one is the exception?

A) Prevalence of vitamin D deficiency is high in homebound or institutional patients.
B) Aging skin may not synthesize vitamin D efficiently.
C) As many as half of older adults could be deficient in vitamin D.
D) Older patients do not synthesize vitamin D.
E) Adequate calcium in addition to vitamin D is important.