Also called Cao Yang, Longevity Leek, etc. Pungent and sweet, mild in nature and non-toxic. Meridian enters the liver, spleen, stomach and kidney. It can tonify kidney and Yiyang, harmonize viscera, promote qi and blood circulation, stimulate appetite, warm stomach, reduce qi, promote blood circulation and eliminate dampness. Amaranth is spicy and warm. Although it has the functions of strengthening yang, tonifying kidney and dispelling cold, it will also produce sore poison. Eating too much will make people smell bad and dizzy. People suffering from carbuncle, sores, beriberi, dermatitis and damp toxin are not suitable for eating. Those with yin deficiency and heat syndrome and excessive fire should eat carefully. Leek is not easy to digest and should not be eaten more.

2. Chinese yam

Sweet, flat. Enter the lung, spleen and kidney meridians. Has the effects of invigorating spleen, nourishing stomach, tonifying lung, consolidating kidney and replenishing essence. Yam has been eaten in China for more than 3,000 years, and has been regarded as a nourishing product since ancient times. Modern research has proved that the biggest feature of yam is that it can supply a large amount of mucin, which is a polysaccharide protein, which can prevent fat deposition in cardiovascular system and maintain the elasticity of blood vessels.

3. taro

Sweet, pungent and flat. Enter the spleen and stomach meridian. Has effect in removing toxic substance, relieving swelling, invigorating stomach, invigorate spleen, harmonizing middle energizer and relieving pain. Modern research shows that taro is an alkaline food and can be used to prevent hyperacidity. Taro is rich in mucosaponin, which can stimulate appetite and help digestion. Raw taro has little toxicity, so it is not suitable to be eaten raw. It must be cooked when eating.

4. Pumpkin

Sweet, flat and non-toxic. Enter spleen, stomach and large intestine meridian. It can strengthen the spleen and promote diuresis, detoxify and kill insects, clear away heat and stop dysentery, relieve pain and prevent miscarriage. Chen Xiuyuan, a famous doctor in Qing Dynasty, said: "Pumpkin is a good product for enriching blood." Modern research shows that pumpkin contains a lot of linoleic acid, palmitic acid and stearic acid, which can lower blood pressure and blood lipid.

5. potatoes

Sweet, flat. Meridian enters the stomach and large intestine. It can benefit qi, strengthen spleen and regulate stomach, and is suitable for asthenia due to spleen deficiency, mental fatigue, anorexia and dyspepsia. Potatoes are rich in nutrition. There are many intimate names for potatoes in various countries. The French call it "apple", the Germans call it "pear" and the Russians call it "second bread".