A middle-aged woman with a family history of breast cancer has told the nurse that she has begun taking 250 mg of vitamin E each day in an effort to prevent cancer. How should the nurse best respond to this woman's statement?
A) "Good for you. You're to be commended for being so proactive with your health."
B) "If you do this, it's best to take several smaller doses during the day rather than one big dose."
C) "Unfortunately, high doses of vitamins haven't been shown to protect against disease."
D) "This is actually quite a dangerous practice, and might increase, rather than decrease, your cancer risk."
C
Feedback:
People should never self-prescribe megavitamins, large doses of vitamins in excess of the recommended dietary allowance (RDA). This practice does not, however, increase an individual's risk of cancer.
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