1. Persimmon: Persimmon contains many nutrients beneficial to human body, such as vitamins, protein, amino acids and minerals. In particular, it is rich in vitamin C, which can improve immunity and help prevent diseases such as colds.

2. Lycium barbarum: Lycium barbarum has the effects of tonifying liver and kidney, improving immunity and antioxidation, and has many benefits to the body. Especially for people with weak liver and kidney and low immunity, eating more medlar can effectively improve their physical condition.

3. Walnut: Walnut contains many nutrients beneficial to human body, such as unsaturated fatty acids, vitamin E, starch, dietary fiber, minerals and protein. Regular consumption of walnuts can enhance human immunity, reduce blood lipids and prevent cardiovascular diseases.

4. Yam: Yam is a nutritious vegetable, which contains many substances beneficial to human body, such as vitamins, amino acids and minerals. Yam helps to enhance the absorption function of gastrointestinal tract, improve physical fitness, improve immunity and reduce blood lipid.

5. Cauliflower: Cauliflower is rich in nutrients such as vitamin C and sulfide, which can supplement the nutrients needed by the human body, promote metabolism and enhance human immunity. Cauliflower also helps to lower cholesterol and prevent cardiovascular diseases.