Abstract
It was observed that thiamine, riboflavin, and niacin were not retained in the organs of rats on non-protein diet or fasting in the condition of nitrogen of the organs declined, even if enough amounts of these vitamins were intraperitoneally injected to the rats every day. Rates of the decrease of riboflavin and niacin in the liver of the rats were greater than loss of the liver nitrogen. However, it was observed that thiamine in the liver was decreased along with, or rather slowly than the loss of the liver nitrogen.
