Résumé :
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[BDSP. Notice produite par INIST-CNRS ONR0xA9o. Diffusion soumise à autorisation]. Objectives : We sought to determine prevalence rates of vitamin C deficiency and depletion in the United States. Methods : We used data from the Third National Health and Nutrition Examination Survey to assess intake of dietary, supplemental, and serum vitamin C. Results : Mean intakes and serum levels of vitamin C were normal ; however, vitamin C deficiency and depletion were common (occurring among 5% - 17% and 13% - 23% of respondents, respectively). Smokers, those who did not use supplements, and non-Hispanic Black males had elevated risks of vitamin C deficiency, while Mexican Americans had lower risks. Conclusions : Health professionals should recommend consumption of vegetables and fruits rich in vitamin C and should recommend supplementation for individuals at risk of vitamin C deficiency.
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