January 2001 Issue
Living With a Smoker May Cut Carotenoids
So-called passive smoking—breathing in someone else’s smoke—may lower blood levels of antioxidants, increasing heart disease and cancer risk, suggests a study from Johns Hopkins University. Using data from 1,590 men and women of all ages, researchers found that smokers as well as nonsmokers exposed to passive smoke at home had lower levels of certain carotenoids (alpha-carotene, beta-carotene and cryptoxanthin) than nonsmokers in smoke-free homes. The passive smokers’ levels were not significantly lower—as the smokers’ levels were—but they showed a tendency
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