TCM food therapy and nutrition focuses not only on the nutrition of the food, but also on the taste and function of the food. In the view of Chinese medicine, all food is functional food and has medical value. Chinese medicine believes that drugs have cold, hot, warm and cool four gas, acid, bitter, sweet, pungent and salty five flavors, food is no exception. According to the cold and hot deficiency of body constitution to identify the selection of meals. Yang-heat constitution refers to: fever and coolness, restlessness and irritability, constipation and sweating, red face and bad breath, red tongue with yellow moss or thick rotten, and rapid pulse. Yin-cold constitution refers to: fear of cold and prefer warmth, shortness of breath and laziness, rotten stool and clear urine, abdominal pain and pressure, white face and sourness, light tongue with white greasy coating and slow pulse. Most of the foods used to treat Yang and heat constitution are cold and cool, such as white radish, winter melon, celery can clear heat; tofu, bitter melon, mung beans can diarrhea fire; turtle nails, pears, honey can nourish Yin; bitter vegetables can detoxify. Most of the foods for treating yin and cold constitution are warm and hot, such as glutinous rice, leek and garlic which have the effect of warming yang; mutton, wine and Sichuan pepper which can disperse cold; wuzhang snake which can open the ligaments; white onion, pepper and ginger which can open the orifices and return yang. According to the five flavors can determine the efficacy of food, such as acid collection, bitter descending, sweet tonic, pungent dispersal, salty soft, etc.. Where the sour food more with the medicinal effect of the production of Jin, astringent, eliminating food, diarrhea, such as plum, prickly pear, etc.; Where the bitter food more with the medicinal effect of clearing heat, fire, detoxification, dry damp, such as bitter melon, asparagus, tea, etc.. Food is nourishing, although the essence of the supplement, there are also contraindications, can not be partial food, to five colors, five flavors, diversification, in order to nutrition comprehensive and balanced. Sun Simiao in the “Thousand Gold Wing formula” stressed: “If you can use food to pacify disease (disease), the release of emotion to dispel disease (psychotherapy), can be considered a good worker (good doctor), long bait life of the strange method (raw food), the very art of health. As a doctor, we must first understand the source of the disease, know the offense, treat it with food, and then order medicine if the food does not heal.” The food is chosen according to its efficacy, for example: ① soft and dispersing food: jellyfish, kelp, seaweed, sea cucumber, abalone, etc., river products in Ulva, snapper, turtle also has a soft effect, and some heat and nourishing effect; ② blood circulation and blood stasis food: crab can solve the knot to disperse blood, crab claws, crab shells also have the function of breaking blood, hawthorn can help digestion, also has the effect of activating blood; ③ gas and bloating food: orange peel, kumquat, (4) appetizing and antiphlogistic foods: radish can eliminate food and phlegm, ginger can appetize and stop vomiting, hawthorn can eliminate food stagnation; (5) heat-clearing foods: mung bean clears heat and detoxifies, loofah cools blood and detoxifies; (6) spleen-healthy foods: coix seed can “break poisonous swelling, cure lung carbuncle, cough and vomit pus and blood”, red bean strengthens the spleen and facilitates dampness, crucian carp strengthens the spleen and facilitates water The food is warm and nourishes the vital energy, but it is contraindicated in case of yin deficiency and heat; eel and chicken are foods that nourish the vital energy, but they are warm in nature and contraindicated in case of heat and yin deficiency; ⑧ foods that nourish the yin and produce fluid: pear can produce fluid and moisten the lung, sugar cane juice produces fluid and nourishes yin, honey nourishes yin and moistens dryness, watermelon produces fluid and clears heat, duck meat nourishes yin, but it is greasy and difficult to digest, pork skin also has a nourishing effect on yin.