Is burping a natural process

Answer 1

Doctors may include burping in the term flatulence, and for a burp may use the old word 'eructation': 'The savour of his meate by eructation ascendeth' (Elyot 1533). Because the burps usually come from the stomach, they often bring with them the smell and taste of partly digested food. This is why carnivores may have very pungent breath, and why cows belch methane.

The gas emitted is mostly air, sometimes swallowed by people eating or drinking nervously, or in a hurry; also by pregnant women, and by others trying to relieve the discomfort of nausea-3or heartburn. However, burps of other gases can be produced; for example, eating bicarbonate of soda to relieve heartburn causes a chemical reaction with acid in the stomach or oesophagus, and produces burps of carbon-dioxide. Carbonated drinks can generate spectacular carbon dioxide belches.