GASTRITIS is inflamed stomach walls. If a person is paunchy, he or she lacks the enzyme-mutations to digest, assimilate, and utilize cooked green foods. Avoid eating cooked green foods. See If I Lack Enzymemutations, What Foods Should I Avoid?, page 174.
Another cause is drinking alcohol, see Alcohol, page 178. Other causes are eating processed sugars, and taking antibiotics.
Eating plenty of unheated honey and raw fat has corrected this condition, that is, as long as cooked green foods and alcohol were not ingested.