Abstract
Amount of taurine has increased in urine of rats fed on pantothenicc acid-deficient ration. In contrast, it has decreased in pyridoxine-deficient rats. The increase in pantothenic acid-deficient rats might be resulted from hyperfunction of adrenals and the decrease in vitamin B6-deficient rats would be due to lowered activity of evsteinsulfinic acid decarboxvlase in liver.