According to a study by the Inflammatory Bowel Disease Research Group, severe obesity is a risk factor for developing Crohn’s disease and ulcerative colitis
This is the main conclusion of a study that analysed data over a fifteen-year period from one million individuals in Catalonia with obesity, severe obesity, or who had undergone bariatric surgery. Crohn's disease and ulcerative colitis are the main inflammatory bowel diseases, affecting around 100,000 people in Catalonia, which today marks World IBD Day.