Question: Which is NOT a function of vitamin D?

Answer: antioxidant

Question: Which fat-soluble vitamin has no established Upper Tolerable Intake Level (UL)?

Answer: vitamin K

Question: An early sign of vitamin A deficiency is:

Answer: night blindness.

Question: Which of the following may protect against free radicals?

Answer: vitamin E supplementation

Question: Which deficiency condition is related to vitamin A’s role in maintaining epithelial tissue?

Answer: keratinization

Question: Antibiotic use can result in reduced synthesis of:

Answer: vitamin K.

Question: Too much of which vitamin can result in birth defects?

Answer: vitamin A

Question: Which vitamin can be synthesized in significant amounts by humans?

Answer: vitamin D

Question: Which must be present for fat-soluble vitamins to be absorbed?

Answer: dietary lipids and bile

Question: Which of these conditions can increase the tendency to bleed?

Answer: vitamin K deficiency