1, Lily: Lily is rich in protein, fat, norcolchicine, calcium, phosphorus, iron and vitamins. It is a nutritional product suitable for all ages. Lily is used as a tonic to stop bleeding, promote blood circulation, clear lung-heat, moisten dryness, nourish yin and clear heat, regulate spleen and strengthen stomach. Modern research shows that lily has obvious antitussive, antiasthmatic and hemostatic effects, which can improve lymphocyte transformation rate and increase the activity of humoral immune function. Lily can also inhibit the growth of tumors. Wash lily, cook it, put it in rock sugar, and eat it after cooling, which can not only clear away heat and moisten the lungs, but also nourish the middle energizer.

2. Jujube: According to Chinese medicine experts, jujube is not only a sweet food, but also a good medicine for treating diseases. Jujube is sweet and flat, and it has the effect of nourishing qi and blood when it enters the spleen and stomach. It is a good product for invigorating spleen and benefiting qi. Chinese medicine often uses jujube to treat spleen and stomach weakness, qi and blood deficiency, insomnia and other diseases. Pharmacological research shows that jujube has the function of protecting liver and reducing blood fat. Experts say that jujube is sweet and nontoxic, but it is hot and humid, so you can't eat more, especially hot and humid. If you eat too much, you will have adverse reactions such as cold, heat, thirst and bloating.

3. Sweet potato: China medical workers have investigated the hometown of centenarians in western Guangxi, and found that all the longevity elderly here have a common feature, that is, they are used to eating sweet potatoes every day, and even regard them as the staple food. Sweet potato is rich in essential nutrients such as starch, vitamins and cellulose, as well as mineral elements such as magnesium, phosphorus and calcium and linoleic acid. These substances can maintain the elasticity of blood vessels and are very effective in preventing and treating habitual constipation in the elderly. In addition, sweet potato is an ideal diet food, because it is rich in cellulose and pectin, which can prevent sugar from transforming into fat.

4. Lycium barbarum: Lycium barbarum has the functions of relieving fever, treating diabetes, relieving cough and resolving phlegm. Drinking Lycium barbarum root after boiling can lower blood pressure. As for Gouqi tea, it has the functions of treating physical weakness, cold sensation, strengthening stomach, liver and kidney diseases, tuberculosis, constipation, insomnia, hypotension, anemia, various eye diseases, alopecia, stomatitis and skin care. However, due to the warm-up effect of Lycium barbarum, people with high blood pressure and impatient temper had better not eat it. On the contrary, people with weak constitution, frequent colds and poor resistance had better eat it every day.