At present, there are about 4000 kinds of commonly used traditional Chinese medicines, of which more than 500 kinds can be used as raw materials for medicinal diet, which are divided into three categories. One is food seasoning such as ginger, cinnamon, fennel, pepper and licorice; The other is natural food, such as lotus seed, lily, lotus root, coix seed, red beans, red dates, longan, yam, black sesame, purslane, shepherd's purse, cogongrass rhizome and so on. There are also animal skins and bones such as pig liver, pig kidney, tiger penis, donkey-hide gelatin and velvet antler. However, among these various raw materials, only more than 60 kinds are safe and delicious without side effects. Most of them are plant medicines, belonging to natural organic ingredients, such as Gastrodia elata, Ginseng, Eucommia ulmoides, Poria, Angelica sinensis, Adenophora adenophora, Pericarpium Citri Tangerinae, Pearl powder, Cordyceps sinensis, Semen Cassiae, Asparagus, Flos Caryophylli, Radix Astragali, Radix Paeoniae Alba, Radix Codonopsis, Fructus Lycii, Radix Glycyrrhizae, Radix Ophiopogonis, Cornu Cervi Pantotrichum, Rhizoma Dioscoreae, Radix Rehmanniae, Ganoderma and Polygoni Multiflori Radix.

The nourishing function of food includes two parts: providing energy and nourishing viscera. As we all know, energy is provided, and nourishing viscera means that food has the function of forming, renewing and repairing body organs and tissues. Specifically, food can nourish the lung and spleen, nourish the heart and liver, nourish the kidney and replenish essence, replenish blood and qi, strengthen muscles and bones, grow hair and blacken hair, improve hearing and eyesight, maintain beauty, strengthen teeth and increase wisdom.

Nourishment in dietary nutrition of traditional Chinese medicine is divided into flat tonic, clear tonic, warm tonic and heavy tonic.

Pingbu: refers to a method of slow tonic to treat people with chronic physical weakness and slow development of the disease.

Tonifying: Tonifying specifically refers to nourishing in summer, which refers to choosing a diet that has a certain effect of dispelling summer heat and promoting fluid production to supplement human consumption.

Warming and tonifying: the method of treating deficiency-cold syndrome with warming and tonifying drugs.

Junbu: a method of treating qi and blood deficiency or sudden loss of yin and yang with powerful tonic. Because of extreme weakness and critical syndrome, it is not enough to save lives, so it is named.