SubscribeCauses of flatulence
Intestinal gas comes from exogenous (90%) and endogenous (10%) sources. Exogenous gas is air that is ingested through the nose and mouth. Endogenous gas is produced within the digestive tract...
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Also, you might want to entertain the idea that you might be slightly allergic to soy; it's not an uncommon allergy.
posted by Specklet at 10:37 AM on March 7, 2005