Gut origin of chronic diseases, (), is a new theory in microbiology field advanced by Chinese scientist Zhao-Liping, microbiology professor of Shanghai Jiao Tong University. The paper called <Whole-body systems approaches for gut microbiota-targeted, preventive healthcare> includes this theory was published at Journal of Biotechnol 2010.02.008. Gut origin of chronic diseases theory says that gut microbiota ferment plant polysaccharides into short chain fatty acids, thus transforming otherwise indigestible food components into extra calories, and gut microbiota can suppress the expression of the fastinginduced adipogenic factor (fiaf) gene. Zhao and his collaborators discovered that the balance of gut origin is very important to body and human health. Chronic diseases could be cuased if the gut origin loses balance of nutrition. it could explain that why chronic diseases happens though we take food that seems normal. Guided by this theory, in 2010, Zhao helped a 2-years-old child from Shanxi province to loss weight successfully, and it was reported by CCTV, the offical television of China. Further reading * Whole-body systems approaches for gut microbiota-targeted, preventive healthcare * Reported by Jeffrey L. Fox from American Society for Microbiology(ASM)