Are prebiotics good for health?

Any substance that can reduce harmful bacteria and promote healthy bacteria or activities can be called prebiotics. It is generally believed that prebiotics provide "food" for probiotics, which can be decomposed and absorbed by beneficial bacteria in the intestine and promote the growth and reproduction of beneficial bacteria. The two complement each other. Prebiotics can optimize the intestinal microecological balance, and then improve immunity, which plays a great role in maintaining the health of the body.