7 things your burps can reveal about your health

A 2015 study found that those participants who chewed gum burped significantly more than those who didn’t. That’s because when you chew gum, you swallow some air with each chew. That air ends up in your oesophagus, which then exits and causes you to burp, says Sadowski.

This is known as supragastric belching, one of two forms of burping. The other is gastric belching, the release of air from the stomach. It tends to be smellier than supragastric belching and is usually caused by consuming alcohol, high-fat foods, chocolate or peppermint.