title: Vitamin supplement use among registered nurses.
abstract: A dietary questionnaire which included items relating to the use of specific vitamin preparations was sent to a randomly selected group of 2000 female, registered nurses aged 30 to 59 yr residing in 10 states. Among the 1742 women (87%) who returned completed questionnaires, the rates of use were 38% for multiple vitamins, 4% for specific preparations of vitamin A, 23% for vitamin C, and 15% for vitamin E. Women who used specific preparations of vitamins A, C, and E generally consumed them in quantities many times greater than the RDA. Use of specific vitamin preparations was found to increase with age and was highest in California.
mesh_terms: D000328:Adult; D000367:Age Factors; D001205:Ascorbic Acid / Q000627:therapeutic use; D004034:Diet Surveys; D005260:Female; D006801:Humans; D008875:Middle Aged; D009726:Nurses; D009751:Nutritional Requirements; D012651:Self Medication; D014481:United States; D014801:Vitamin A / Q000627:therapeutic use; D014810:Vitamin E / Q000627:therapeutic use; D014815:Vitamins / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D014815:Vitamins; D014801:Vitamin A; D014810:Vitamin E; D001205:Ascorbic Acid