and mitigation of ulcerative colitis symptoms. The sudden addition of substantial quantities of prebiotics to the diet may result in an increase in fermentation, leading to increased gas production, bloating or bowel movement. Production of SCFA and fermentation quality are reduced during long-term diets of low fiber intake. Until bacterial flora are gradually established to rehabilitate or restore intestinal bacteria, nutrient absorption may be impaired and colonic transit time temporarily increased with a rapid addition of higher prebiotic intake. Genetic modification Genetically modified plants have been created in research labs with upregulated inulin production. See also References Further reading Frank W. Jackson, PREbiotics, Not Probiotics. 2013, Jacksong GI Medical. . External links International Scientific Association for Probiotics and Prebiotics Bacteriology Digestive system