Which of the following food items are considered an important dietary source of vitamin D? Select all that apply
A) Fish
B) Cottage cheese
C) Irradiated milk
D) Mozzarella cheese sticks
E) Apples
Ans: A, C
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Intestinal absorption occurs mainly in the jejunum and includes vitamin D2 and vitamin D3. The most important dietary sources of vitamin D are fish, liver, and irradiated milk. Because vitamin D is fat soluble, its absorption is mediated by bile salts and occurs by means of the lymphatic vessels.
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