When resistance is poor, you can take B vitamins, vitamin C and vitamin E. All of the above vitamins have the effect of regulating and enhancing the immunity and resistance of the human body. Especially B vitamins, which are rich in a variety of beneficial substances for the human body, can regulate the function of the gastrointestinal tract, promote the absorption and digestion of food, enhance the function of the liver, increase the bioavailability of food, so it can play a role in increasing human resistance. B vitamins also promote the therapeutic effect of kidney function, so it has a good effect on human resistance and immunity improvement. In addition, vitamin C has a certain detoxification function and a certain liver protection function, so it can also play a role in increasing the body’s resistance. Vitamin E can effectively resist the generation of oxygen free radicals, so long-term use can also enhance the body’s resistance.