BACKGROUND: People who consume at least 400 IU of vitamin E per day from supplements may be at slightly increased risk for premature mortality. OBJECTIVE: To estimate the percentage of U.S. adults age 20 years or older who consume at least 400 IU of vitamin E per day through the use of vitamins, minerals, or other dietary supplements. DESIGN: Cross-sectional analysis. SETTING: The 1999-2000 National Health and Nutrition Examination Survey. PATIENTS: Representative sample of the civilian, noninstitutionalized U.S. population. MEASUREMENTS: Participants answered questions about the use of vitamins, minerals, or other dietary supplements. RESULTS: Among 4609 adults, 11.3% (95% CI, 9.7% to 13.1%) consumed at least 400 IU of vitamin E per day from supplements. Such intake increased with age, was about equal for men and women, and was more common among white persons (14.1%; CI, 11.9% to 16.7%) than African-American (3.7% [CI, 2.6% to 5.2%]) or Mexican-American persons (3.9% [CI, 2.8% to 5.4%]). The median dietary intake of vitamin E was 8.8 IU per day. LIMITATIONS: Information about vitamin E intake was self-reported. CONCLUSIONS: The use of vitamin E supplements in dosages of at least 400 IU per day is common among U.S. adults.
BACKGROUND:People who consume at least 400 IU of vitamin E per day from supplements may be at slightly increased risk for premature mortality. OBJECTIVE: To estimate the percentage of U.S. adults age 20 years or older who consume at least 400 IU of vitamin E per day through the use of vitamins, minerals, or other dietary supplements. DESIGN: Cross-sectional analysis. SETTING: The 1999-2000 National Health and Nutrition Examination Survey. PATIENTS: Representative sample of the civilian, noninstitutionalized U.S. population. MEASUREMENTS: Participants answered questions about the use of vitamins, minerals, or other dietary supplements. RESULTS: Among 4609 adults, 11.3% (95% CI, 9.7% to 13.1%) consumed at least 400 IU of vitamin E per day from supplements. Such intake increased with age, was about equal for men and women, and was more common among white persons (14.1%; CI, 11.9% to 16.7%) than African-American (3.7% [CI, 2.6% to 5.2%]) or Mexican-American persons (3.9% [CI, 2.8% to 5.4%]). The median dietary intake of vitamin E was 8.8 IU per day. LIMITATIONS: Information about vitamin E intake was self-reported. CONCLUSIONS: The use of vitamin E supplements in dosages of at least 400 IU per day is common among U.S. adults.
Authors: Eric A Klein; Ian M Thompson; Catherine M Tangen; John J Crowley; M Scott Lucia; Phyllis J Goodman; Lori M Minasian; Leslie G Ford; Howard L Parnes; J Michael Gaziano; Daniel D Karp; Michael M Lieber; Philip J Walther; Laurence Klotz; J Kellogg Parsons; Joseph L Chin; Amy K Darke; Scott M Lippman; Gary E Goodman; Frank L Meyskens; Laurence H Baker Journal: JAMA Date: 2011-10-12 Impact factor: 56.272
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