The theory of diet regimen came into being with China's cooking and developed with the development of cooking. The change and development of China's cooking diet has always been under the guidance of philosophy and health preservation.

The homology of medicine and food is a remarkable feature of China's health culture. China has had the saying of "eating, nourishing, dietotherapy and taboo" since ancient times. The thought of homology of medicine and food has formed a unique tradition and system in China.