When you burp and it smells like rotten eggs, it means that gas has mixed with sulfur in your digestive tract, producing hydrogen sulfide gas. This can be a normal occurrence, but excessive or foul-smelling burps may be a sign of an underlying gastrointestinal issue that may need medical attention. Some of the causes of sulfur burps include:

• Diet: Certain foods can cause sulfur burps, such as beans, legumes, cruciferous vegetables (broccoli, Brussels sprouts, and cauliflower), garlic, dairy products, milk, and beer.

• Gastrointestinal issues: Sulfur burps may also be caused by digestive conditions, such as irritable bowel syndrome (IBS), gastroesophageal reflux disease (GERD), lactose intolerance, and celiac disease.

• Behavior: Excess intake of air can cause burps, such as eating too quickly, eating when talking, drinking carbonated beverages, overeating, smoking, drinking from a straw, chewing gum, sucking on hard candies, and having loose dentures.

To prevent sulfur burps, you can try natural home remedies such as drinking green tea, peppermint tea, or chamomile tea, which can aid digestion. Keeping a food diary can also help you identify specific trigger foods that you can avoid to prevent future bouts of eggy burps. If you experience frequent sulfur burps or excessive burping, it is best to consult a gastroenterologist to identify the underlying cause of your digestive problem.