For example, fructo oligosaccharide (FOS) treatment can prevent high-fat diet (HFD)-induced metabolic disorders by stimulating the production of glucagon like peptides 1 and 2 (GLP-1 and GLP-2),49 50 but also likely at least in part, by acting on all the processes of the mucus production.51 The gene discussed is GCG; the disease is metabolic disease.