We examined 47 patients receiving traditional therapy. of these, 11 children had rickets, 15 children with rickets on the background of pneumonia and 21 children with rickets on the background of pneumonia and hypotrophy. In children with rickets against the background of pneumonia and malnutrition, after the traditional method of treatment, normalization of phosphorus-calcium metabolism and some indicators of lipid metabolism was not observed. Along with clinical recovery, total blood and fecal lipids, alkaline phosphatase activity remained elevated, while the content of calcium and phosphorus was below normal, which indicates incomplete recovery and, apparently, requires further correction of biochemical parameters.