title: Trends in dietary intake of vitamins A, C, and E in German children and adolescents--results of the DONALD Study.
abstract: Intake of vitamins A, C, and E was evaluated and age and time trends were assessed on the basis of 3-day weighed dietary records (n = 5121) of 2- to 18-year old boys (n = 417) and girls (n = 425) enrolled in the DONALD Study (Dortmund Nutritional and Anthropometric Longitudinally Designed Study) 1986-2001. Intake of vitamin A remains stable over time, intake of vitamin C increases linearly, and intake of vitamin E follows a nonlinear trend. Age trends of vitamins A and C (per MJ) were nonlinear with a minimum at the beginning adolescence, while intake of vitamin E (per MJ) increased linearly. Girls had higher nutrient densities but lower intakes expressed as percent of reference values. Fortified food in total had a higher impact on time trends of nutrient intake than other single food groups defined here. Our results point to the impact of the food industry on long-term nutrient intake, but also underline the necessity of nutrition education even in young age groups to improve vitamin intake.
authors.affiliation: Research Institute of Child Nutrition (FKE), Dortmund. alexy@fke-do.de
authors.forename: Ute
authors.initials: U
authors.lastname: Alexy
authors.forename: Mathilde
authors.initials: M
authors.lastname: Kersting
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Sichert-Hellert
mesh_terms: D000293:Adolescent; D000367:Age Factors; D000886:Anthropometry; D000975:Antioxidants / Q000008:administration & dosage*; D001205:Ascorbic Acid / Q000008:administration & dosage*; D001481:Basal Metabolism / Q000187:drug effects / Q000502:physiology; D002648:Child; D002664:Child Nutritional Physiological Phenomena / Q000502:physiology; D002669:Child Welfare; D002675:Child, Preschool; D004435:Eating / Q000502:physiology*; D002149:Energy Intake / Q000502:physiology; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D012016:Reference Values; D012737:Sex Factors; D013995:Time; D014801:Vitamin A / Q000008:administration & dosage*; D014810:Vitamin E / Q000008:administration & dosage*
chemical_list: D000975:Antioxidants; D014801:Vitamin A; D014810:Vitamin E; D001205:Ascorbic Acid