Would you recommend β-carotene supplementation to a smoker to decrease risk to lung cancer?
A) Yes-β-carotene can quench singlet oxygen.
B) Yes-smoking increases free radical formation; β-carotene can decrease free radicals.
C) No-β-carotene supplements may be harmful to smokers and are their use is not advised for the general public.
D) No-β-carotene supplements can cause a vitamin A toxicity and liver cirrhosis.
Correct Answer:
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