Han palace health five elements vegetarian meal is good. According to relevant public information, the five elements vegetarian meal in Hangong is based on the principles of TCM health preservation and compatibility of TCM five elements, that is, generating grams, returning to the meridian and assisting the monarch, minister and envoy. According to the guiding ideology of nutrition and cytology, 178 natural ingredients (more than 20 kinds of cereals, beans, 10 kinds of fungi, algae, flowers and leaves, nuts, 30 kinds) are selected.