1, Banana: Banana is a very common fruit that anyone can eat. There is something called alkaloid in bananas, which has the effect of excitement and confidence enhancement. At the same time, tryptophan and vitamins in bananas can help the brain to produce more serotonin, thus effectively enhancing immunity.

2, deep-water fish: I believe many people have some doubts about this, but in fact, related experiments have confirmed that fatty acids in fish oil can resist depression, thus enhancing resistance.

3. Spinach: Spinach is one of the common green vegetables, which most people like to eat. For female friends, eating spinach has many benefits. Spinach contains folic acid in addition to iron. Folic acid can effectively prevent mental illness, such as depression, and thus enhance immunity.

4, grapefruit: grapefruit is not only attractive, but also refreshing. Grapefruit has a high content of vitamin C, which can not only enhance immunity, but also resist stress. It is also an important component of dopamine production.

5. Garlic: Relevant statistics show that after eating garlic, everyone's fatigue will be reduced and their mentality will become peaceful, thus effectively improving immunity.

6. Low-fat milk: After the female friends with premenstrual syndrome eat low-fat milk, most people's conditions have eased, which is enough to prove that low-fat milk can effectively improve immunity.

7. Propolis: Propolis can help everyone improve their ability to resist various bacteria and viruses and balance the body's immune system. It is one of the immune enhancers.