[Representative studies of the vitamin D status of 2-year-old children in Frankfurt am Main].

In a representative sample population of 421 two-year-old Frankfurt children studied for vitamin-D nutritional status, only one case of subclinical rickets was discovered. 93.3% of the children have been a regular vitamin-D supplements during the first 12 month of life, but only 32.7% of them continued to receive the supplement beyond the age of one year. Risk groups were not identified, neither with regard to ethnic groups, nor smaller vitamin-D doses, or any other aspect.