There are quite a few special diets which some people find helpful with IBS. Some may purport that they are the cure. I am not entirely sure that everyone’s IBS can be controlled on diet alone. Radically adjusting your diet could be harmful to your health both mentally & physically. You may become very frustrated with finding foods that meet the requirements of your new diet or become depressed in the loss of your ability to eat foods you once loved. It would also be terrible if this new diet didn’t actually improve your symptoms. This isn’t to say that these diets don’t help people or that you won’t find success with them, but it’s best to take it slowly and perhaps speak with your doctor or a trained nutritionist before making a radical change.