Dietary protein is linked to the intestinal microorganisms. The decomposition of dietary protein can provide nutrients for microbial growth, which in turn can ferment protein to produce some metabolites. This review elaborates that the effects of different protein levels and types on intestinal microorganisms and their metabolites fermented by intestinal microorganisms, as well as the effects of these metabolites on organisms. It is well known that intestinal microbial imbalance can cause some diseases. Dietary protein supplementation can alter the composition of intestinal microorganisms and thus regulates the body health. However, protein can also produce some harmful metabolites. Therefore, how to rationally supplement protein is particularly important.

饮食蛋白质与肠道微生物有关。膳食蛋白质的分解可以为微生物的生长提供营养，进而可以发酵蛋白质以产生一些代谢产物。这篇综述阐述了不同蛋白质水平和类型对肠道微生物及其经肠道微生物发酵的代谢产物的影响，以及这些代谢产物对生物的影响。众所周知，肠道微生物失衡会导致某些疾病。膳食蛋白质补充剂可以改变肠道微生物的组成，从而调节身体健康。但是，蛋白质也会产生一些有害的代谢产物。因此，如何合理补充蛋白质尤为重要。