Acquired fructose intolerance is a condition in which the body can not properly absorb the sugar, fructose. As a result, affected people may experience gastrointestinal symptoms, such as gas, abdominal pain, bloating and/or diarrhea, depending on the quantity of fructose consumed and the presence of other sugars ingested with it. Gastrointestinal symptoms related to acquired fructose intolerance appear to be more common in people who have an underlying functional bowel disorder such as irritable bowel syndrome. The underlying cause of the condition is poorly understood. It is distinct from the rare, genetic form of fructose intolerance (called hereditary fructose intolerance), which usually develops earlier in life and often affects more than one family member. Acquired fructose intolerance is generally managed with dietary modifications. [ GARD:0002399 ]