Impact of vitamin D supplementation model on the circulating levels of 25 (OH) D in Algerian children aged 1-23 months.

Vitamin D deficiency is a public health problem around the world. In Algeria, the nutritional situation is still subject to uncertainties. In order to evaluate the vitamin D status and to know the impact of the current vitamin D supplementation model on the circulating levels of 25 (OH) D, an investigation was conducted on a group of Algerian children.