Irritable bowel syndrome, or I-B-S for short, is a common digestive problem that causes a variety of annoying symptoms. These include diarrhea and/or constipation, abdominal pain, cramping and a feeling of being bloated. Some sufferers also develop frequent heartburn. In fact, a recent meta-analysis of 15 prior studies concluded that there is a strong overlap between I-B-S and a chronic heartburn condition called gastroesophageal reflux disease, or GERD. In the absence of GERD, the researchers concluded, I-B-S is relatively uncommon.
