Which foods and beverages can cause excessive abdominal gas or bloating?

Excessive abdominal or intestinal gas manifests as either excessive belching, excessive flatulence, or both. Just to be sure we are clear about what the term “bloating” means: Bloating is an uncomfortable feeling of fullness and tightness of the abdomen. In a person with bloating of the abdomen, the abdomen doesn’t need to be observably distended. Our…