How to improve immune function

For the improvement of immune function, there are many products on the market, but many of them are oral propaganda, and it is difficult to see experimental data. It is suggested that qualified units should do work in this area, especially the scientific research departments funded by the state. -the microecological effect is still good, but it is best to use imported ones. The quality is more stable. -does the microecology mentioned by the friends upstairs refer to probiotics-there are many good products made in China that may not be good things.-can you give me a few examples? -Wow! Probiotics can improve immunity, yes, seems to make sense, then vitamins, minerals, amino acids. It can boost the immune system. I think the key point is balanced nutrition, good management, biological control is the way to enhance immunity! -Health is the prerequisite! What is said upstairs is intestinal mucosal immunity! But there are more components of the immune system. 1, lymph 2, liver 3, kidney 4, spleen 5, various channel mucosa 6, thymus 7, lung 8, hair, and so on! Good microecological products can indeed play the role of intestinal mucosal immunity (look at the vitality of bacteria, do not look at the number of bacteria)-advanced theory! Study! A lot of things are easier said than done-don't look at the number of bacteria to see the vitality of bacteria. -for microecological agents, this is indeed a key indicator.-I don't know much. I've learned. Academically, it is better to have a hundred schools of thought contend.