Abstract
An influence of the 3-months weight-reduction programme on vitamin D concentration in obese prepubertal children was evaluated. The programme consisted of dietary and physical activity modifications and behaviour therapy including individual psychological care for the child and its family. The recommended daily intake from low-energy diet was 1200–1400 kcal/day. Vitamin D intake was lower in obese children before and during therapy in comparison to the controls and recommended intake. Hypovitaminosis D in obese children corresponded to decreased vitamin D intake and was more prevalent during fall/winter than spring/summer. Analysis of diet and measurements of the serum vitamin D concentration in obese children during weight-reduction therapy may be useful for monitoring of this vitamin status and for modifications of diet or supplementation. Further longitudinal studies are necessary to study the relationship between obesity, weight loss and vitamin D in prepubertal children.
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