Can food allergies or food intolerances cause gastritis both acute and chronic?

Yes, but complicated: In short, yes, food allergies can cause gastritis. Not commonly. The condition where gastritis would occur from food allergies is known as eosinophilic gastritis and is where the stomach lining becomes inflamed from the presentation of allergic foods. This condition is not common but recognized. Food intolerance, theoretically could but many more conditions are more common.

Yes: Food intolerance can cause both acute and chronic gastric symptoms. Allergies more often trigger acute symptoms, but these can be GI in nature as well. Typically there will be an identifiable cause and effect relationship between the food and symptoms. If concerned, seek care from you physician.