نتایج جستجو برای: multivitamins
تعداد نتایج: 654 فیلتر نتایج به سال:
BACKGROUND Multivitamin supplements are used by millions of Americans because of their potential health benefits, but the relationship between multivitamin use and prostate cancer is unclear. METHODS We prospectively investigated the association between multivitamin use and risk of prostate cancer (localized, advanced, and fatal) in 295,344 men enrolled in the National Institutes of Health (N...
OBJECTIVE To describe dietary supplement use among US children. DESIGN Analysis of nationally representative data from the 1999-2002 National Health and Nutrition Examination Survey (NHANES). SETTING Home interviews and a mobile examination center. PARTICIPANTS Children from birth through 18 years who participated in NHANES (N=10,136). MAIN EXPOSURE Frequency of use of any dietary suppl...
BACKGROUND It is unknown whether iron supplementation in human immunodeficiency virus (HIV)-infected children living in regions with high infection pressure is safe or beneficial. A 2-arm, double-blind, randomized, controlled trial was conducted to examine the effects of iron supplementation on hemoglobin, HIV disease progression, and morbidity. METHODS HIV-infected Malawian children aged 6-5...
BACKGROUND Experimental animal studies have shown adverse effects of high-dose vitamin C supplements on age-related cataract. OBJECTIVE We examined whether vitamin C supplements (approximately 1000 mg) and multivitamins containing vitamin C (approximately 60 mg) are associated with the incidence of age-related cataract extraction in a population-based, prospective cohort of women. DESIGN Ou...
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