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Impact of season and diet on vitamin d status of african american and caucasian children.

By Kumaravel Rajakumar, Michael F Holick, Kwonho Jeong, Charity G Moore, Tai C Chen, Flora Olabopo, Mary Ann Haralam, Anita Nucci, Stephen B Thomas and Susan L Greenspan

Abstract

Seasonal variation of vitamin D status and adequacy of dietary vitamin D and impact of race on maintaining vitamin D sufficiency was assessed in 140 healthy 6- to 12-year-old African American (AA) and Caucasian (C) children residing in Pittsburgh, Pennsylvania during summer and winter. Vitamin D insufficiency was not rare in either group (AA vs C, summer, 17.2% vs 14.3%, nonsignificant; winter, 34.1% vs 32.5%, nonsignificant) despite a mean dietary intake of vitamin D above the American Academy of Pediatrics (AAP) recommended intake (400 IU/d; AA vs C, summer, 421 vs 456 IU/d, nonsignificant; winter, 507 vs 432 IU/d, nonsignificant). Race/season and dietary vitamin D were predictors of serum 25-hydroxyvitamin D [25(OH)D] concentrations. However, dietary vitamin D influenced 25(OH)D only in Caucasians during winter. Current AAP recommended daily intake for vitamin D is inadequate for maintaining vitamin D sufficiency in children

Topics: Nutrition, Prenatal & Pediatric Health
Year: 2011
DOI identifier: 10.1177/0009922810397334
OAI identifier: oai:health-equity.pitt.edu:2490
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