DOCTOR'S VIEWS ARCHIVE
MSG certainly can be the cause of gastrointestinal symptoms, but sensitivity to MSG is not part of irritable bowel syndrome. Nevertheless, dietary intolerances to specific foods can mimic irritable bowel syndrome.
For example, many people are intolerant of lactose, the sugar in milk. In some individuals, even small amounts of milk can cause symptoms that mimic irritable bowel syndrome. Therefore, testing for lactose intolerance or a trial of strict elimination of lactose from the diet may be necessary in patients in whom a diagnosis of irritable bowel syndrome is being considered.
Individuals also may be intolerant of sucrose and may develop symptoms (diarrhea and cramps) that can mimic irritable bowel syndrome when they drink beverages like sodas that are sweetened with corn syrup which is high in sucrose.
Sorbitol is another example of a sweetener used in reduced calorie foods, for example, sugar-free chewing gum. It also is used in prepared foods and for diabetics. Intolerance to sorbitol may cause irritable bowel-like symptoms as well.
This illustrates the difficulty in firmly making a diagnosis of irritable bowel syndrome; you really have to sort out all of these different entities. (Remember, the diagnosis of IBS requires the exclusion of other diseases that can produce similar symptoms.)
The published answers represent the opinions and perspectives of the doctors and pharmacists of MedicineNet.com and are for educational purposes only. They should not be used to replace or substitute for timely consultation with your doctor. Accuracy of information cannot be guaranteed.
Please remember, information can be subject to interpretation and can become obsolete.
Back to Doctors' Dialogue Index