[Hygienic evaluation of the nutrition of the population in relation to endemic urolithiasis in the Chuvash ASSR].

By looking into the alimentary habits of the rural population residing in the urolithiasis endemic and non-endemic districts of the Chuvash ASSR the author ascertained definite differences in the content of calcium, silicon, strontium, manganese and cadmium in food rations of representative population groups under comparison. In the authors' opinion an elevated content of calcium, strontium, silicon, manganese and cadmium in food rations in inhabitants of the urolithiasis endemic districts is responsible for the urolithias endemy in the south-western areas of the republic.