(27-05-11) Impact of season and diet on vitamin d status of african american and caucasian children.

Rajakumar K, Holick MF, Jeong K, Moore CG, Chen TC, Olabopo F, Haralam MA, Nucci A, Thomas SB, Greenspan SL.
Source
University of Pittsburgh, Pittsburgh, PA, USA, [email protected].
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.

Source: Clin Pediatr (Phila). 2011 Jun;50(6):493-502

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