Lutein, vitamin C and beta-carotene may counteract cataract

A cataract clouds the lens of the eye, reducing vision, and usually develops with age.

Doctors believe antioxidants and the colorful carotenoids help protect the eye. In this analysis, doctors reviewed eight placebo-controlled trials, plus 12 studies following men and women over several years.

Overall, for every 10 mg increase per day of lutein or zeaxanthin, chances for age-related cataract declined 26 percent. Each 500 mg daily increase in vitamin C lowered chances 18 percent; each 5 mg increase in beta carotene, 8 percent; and each 5 mg daily increase in vitamin A lowered chances of cataract by 6 percent.

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