Vitamin D deficiency is associated with metabolic syndrome in Tunisian children with obesity.

Background: A negative association between serum vitamin D levels and obesity has been reported by several studies. Data on vitamin D status in Tunisian obese children and its relationship with metabolic syndrome remain rare.

Aim: We aimed to study the prevalence of vitamin D deficiency in Tunisian obese children and to examine the correlation between vitamin D levels and metabolic syndrome.