Abstract
In the previous papers, the author reported the accelerating effect of food colors (xanthene and azo group) for the urinary thiamine excretion when the food colors were given for rats. In the present paper, thiamine level of several organs of mouse were examined, and it was observed that the kidney showed especially low thiamine content and ester ratio. From this results, one of the causes of these findings seems to be due to the accelarated dephosphorylation in kidney by an administration of food colors.
