Dietary vitamin B-6 intake and food sources in the US population: NHANES II, 1976-1980.
Dietary vitamin B-6 intake and food sources were estimated from the Second National Health and Nutrition Examination Survey (NHANES II) dietary data for 11,658 adults aged 19-74 y. The average daily intake of vitamin B-6 was 1.48 +/- 0.01 mg (mean +/- SEM) for the total population, 1.85 +/- 0.02 for males and 1.14 +/- 0.01 for females. Seventy-one percent of males and 90% of females consumed less than the 1980 recommended dietary allowance (RDA) of vitamin B-6. Sixty-four percent of all survey respondents reported a ratio of vitamin B-6 to dietary protein of less than 0.02 (expressed as mg/g protein). Foods from animal and plant sources provided 48% and 52% of the total vitamin B-6, respectively. Vitamin B-6 intake decreased (P less than 0.0001) with increasing age and decreasing education and income status. Beef steaks and roasts, alcoholic beverages, potatoes, ready-to-eat cereals, and milk were important dietary sources of vitamin B-6.
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Division of Cancer Prevention and Control, National Cancer Institute, National Institutes of Health, Bethesda, MD.
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D000328:Adult; D000368:Aged; D000434:Alcoholic Beverages; D000818:Animals; D044383:Black People; D002417:Cattle; D004032:Diet; D002523:Edible Grain; D005260:Female; D005502:Food; D006801:Humans; D008297:Male; D008460:Meat; D008875:Middle Aged; D009749:Nutrition Surveys; D011736:Pyridoxine; D011198:Solanum tuberosum; D014481:United States; D044465:White People; D001741:Black or African American
D011736:Pyridoxine