like normal white sugar, and sugars from fruit juices like tang, splenda,............. my point people make it seem as if ibs can not be cured without completely cutting out these unrefined sugars first, and also starcgy vegetables. I think this is a ridiculous assertion with no solid proof. I understand these things may feed unfriendly bacteria, but that is not enough to say it cant be cured even if one consumes them in moderation. As long as you take a high quality probiotic like kefir and also natural antibiotics like colloidal silver...... and I know someone who was cured who also ate unnatural sugars. So when people claim otherwise its just upsetting, since cutting out sugar completely is almost near impossible and let s be honest it's ridiculous also you gave no solid facts about why you cant be cured even if you consume it