Not only does smoking cause lung cancer, it can also often make irritable bowel syndrome symptoms worse. Why? Because tobacco is a strong GI tract irritant, stimulant and carcinogen. which is going to cause problems with ibs sufferers.Anyone that has IBS will already suffer with sensitive gastrointestinal, and will be particularly susceptible to stimuli, whether this stimuli is in the form of food, or tobacco. In fact tobacco is one of the worst things for triggering Irritable Bowel symptoms.
Tobacco generally affects pretty much all of the digestive system, and can cause reflux and heartburn, both of which are known as typical ibs symptoms.
Other than nicotine, tobacco contains over 400 toxins and over 40 known carcinogens. These harmful substances enter the bloodstream and are then carried straight through the digestive tract, and this can trigger symptoms of ibs. When you inhale smoke from the tobacco this can also cause, bloating, belching and gassiness, again all symptoms of IBS.
Swallowing or inhaling tobacco can also bring carcinogens right to the colon, which increases the risk of colorectal cancer. Studies shown that around 12% of colorectal cancers can be attributed to smoking. So not only does smoking increase Irritable Bowel Symptoms, it also poses a far greater health risk like cancer.
So smoking is not going to do your health any good at all, and it is in all likliehood going to make your symptoms of IBS worse.