A lot of people following the low fodmap diet for irritable bowel assume that celery is bad for IBS if it is a high fodmap food. But there is more to healing SIBO and IBS than just following a low fodmap diet for irritable bowel syndrome. According to the Monash low fodmap app, 1/3 of a medium celery stalk which is 15 grams or 7 cm of a stalk per meal, contains moderate amounts of the mannitol fodmap, which can cause digestive issues in IBS sufferers intolerant to the mannitol fodmap. ~ Didem