As one of the objects of this study was the determination of the content of bound forms of pantothenic acid (Pa A) in various Japanese foods, close attention was paid to the total pantethine content in the present study. The total pantethine content was estimated to be high in meats and some fishes, and of the low-priced food articles easily procurable in Japan, sweet potato, "Natto", sardine, oyster, leek and garlic were found to be rich in total pantethine.