Have you heard about congenital sucrase-isomaltase deficiency (CSID)? Symptoms include bloating, diarrhea, gas pains among others. While traditionally considered a rare disease, it may be more common than we think as Daksesh Patel, a gastroenterologist with GI Alliance of Illinois, tells us. Dr. Patel details how one can acquire a sucrase-isomaltase deficiency, the common symptoms of CSID, and the treatment strategies - both dietary and pharmaceutical.