[Effect of complete starvation on the concentration of vitamin B12 in several tissues of white rats]

The vitamin B12 content in the liver, kidneys and blood with complete fasting was measured. After 2 days of complete fasting the vitamin B12 concentration was declining, rising again by the 7th day. Its highest concentration was registered in the kidneys, both in normalcy and in complete fasting. With the amount of the vitamin calculated to cover the entire organ the foremost was the liver, both in test animals and in controls.