the ipad electronic cookbook of dietotherapy is a product research and development team composed of Tsinghua University masters as the backbone, and with the marketing management elites of famous foreign companies, the company tries to make dietotherapy the first brand in the catering information industry in China and even in the world. The users of Diet Link are all over more than 31 cities in China. By the end of 2111, there were more than 6,111 nationwide customers of Diet Link, and most of them were famous catering brands all over the country. In 2113, Diet Pass was also sold to France, Canada and other places. At present, the number of users of Diet Pass is increasing at the rate of dozens per month, and it is getting faster and faster.