Tofu is a healthy food that is made of soy milk by curdling and pressing it into a container. Tofu is low in calories but they are high in protein, iron, calcium, and more. So it is a popular food for people who are conscious of their diet and health. Tofu was introduced in Japan from China during the Nara period, and it spread all through Japan in the Muromachi period. In the Edo period, people preferred to eat dengaku. Dengaku is grilled tofu on a skewer dipped in miso. During that time, the Tofu Hyakuchin was published. This book is full of recipes using tofu, introducing about 100 kinds of tofu dishes. It shows that tofu has been loved by Japanese people for a very long time.