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Karen Maines asked whether Diet Pepsi could be the cause of problems.
I understand that the artificial sweetener sorbital is a laxative,
and therefore could be the source of celiac like symptoms.  Diet
Pepsi may have aspartame or saccharine, but anything artificially
sweetened should be checked to see if it has sorbitol.
nicki humphries
university of maryland medical system
baltimore, md.