Question

which statement is not true of vitamin e?
a. vitamin e deficiency can cause hemolytic anemia in premature infants.
b. dietary vitamin e requirements increase with increasing intakes of polyunsaturated fats.
c. vitamin e is the most toxic of all the vitamins.
d. vitamin e is easily destroyed by heat and exposure to air.

Explanation:

• Option a: Vitamin E deficiency can indeed lead to hemolytic anemia in premature infants as it helps protect red blood cells.
• Option b: Since polyunsaturated fats are more prone to oxidation, more vitamin E (an antioxidant) is needed when their intake increases.
• Option c: Vitamin A and D are more toxic in excess compared to vitamin E. Vitamin E has a relatively low toxicity level.
• Option d: Vitamin E is sensitive to heat and air (oxidation), so this statement is correct.

Answer:

C. Vitamin E is the most toxic of all the vitamins.