Figure 2.

Infant health status and microbiota establishment. The health of offspring is closely related to the microbiota. In this figure, we have listed several representative good microbiota and several representative bad microbiota. The microbiota will inhibit the developmental stages throughout the offspring. The mechanism by which the good microbiota is beneficial to health may be: produce SCFAs, participate in the regulation of immune and inflammatory responses, and maintain local internal environmental balance. The mechanism by which the bad microbiota is harmful to health may be: increase intestinal permeability, cause local immune and inflammatory reactions, and cause local internal environmental balance disorders.