Irritable Bowel Syndrome, or IBS is a digestive disorder that affects people differently and to varying degrees. Symptoms include gas, bloating, pain, constipation and/or diarrhea and indigestion. Food intolerances and stress are usually implicated and can exacerbate the problem significantly. Some clients cannot tolerate gluten or lactose and others have fructose malabsorption issues. In more serious cases, the client may have all three food group sensitivities.