Chunyan Pang, Xiaobo Bao

(Northeastern University, School of Resources and Civil Engineering)

Abstract：

The human intestinal tract has a large and complex symbiotic micro-ecology,and its stable state affects the body's energy absorption,material metabolism and immune regulation.There is a causal relationship between the imbalance of Intestinal flora and development of obesity,depression,diabetes and related metabolic diseases.There is a complete metabolic system between the intestinal micro-ecology and the host and a rich metabolic exchange is carried out to cope with environmental change factors and affectthe health of the host.Dietary intervention can effectively affect the composition and quantity of host micro-ecology,thereby improving human metabolism.In-depth discussion of the relevant mechanisms of action in the pathology of diet and intestinal microecology will provide important guiding significance for prevention and control of chronicdiseases andhuman health promotion.

Key Words：

gut microbiota; dietary fiber; fecal microflora transplantation; probiotics; postbiotics