Today, technology and living standards have improved more than ever before, but people's health has sharply declined. Elderly diseases such as high blood pressure and diabetes now happen to young people. Cancer and other malignant diseases are wide spread. All of these are because the quality of our life has deviated from the concept of healthy living. This book titled "Tao and Diet" describes the relationship between Tao and food from a Taoist perspective. It is dedicated to those who are seriously care about their quality of life. It encourages the reader to use natural diet conditioning to achieve the goal of health and longevity.