what is gastrointestinal intolerance
Products. Gastrointestinal (GI) intolerance is much more common than food allergy and has distinctly different causes and symptoms. 1 GI intolerance happens when the digestive system cannot process some foods, causing discomfort.1 Unlike a food allergy, it does not involve an immune system reaction-in fact, people with GI intolerance can usually tolerate small amounts of these foods without experiencing any uncomfortable symptoms.1. Unlike a food allergy, it does not involve an immune system reaction-in fact, people with GI intolerance can usually tolerate small amounts of these foods without experiencing any uncomfortable symptoms.