 [ Symptoms ] can umbilical hernia cause nausea  i have been sick to my stomach for almost 8 weeks my doctors have done numerous amount of tests the last test i had done was a ct scan on my abdominal and pelvic area the only thing that he found was that i have an umbilical hernia but did not think much of it is it possible that an umbilical hernia is the reason why i have been feeling nauseous for two weeks [ Disease ] a low residue diet is one that is low in fiber and hard to digest foods modified corn starch is used in food products as a thickening agent and is not the same as eating real corn i see no reason why you could not consume products that contain this ingredient if you are concerned check with your healthcare provider you also might want to see a registered dietitian as each person with ibd reacts differently to food you can ask your doctor for a referral or go to eatight org good luck