Other troublesome foods include onions, celery, carrots, raisins, apricots, prune juice, wheat products, and Brussels sprouts. Offending foods may not have to be completely eliminated. Sometimes, they can be tolerated in smaller amounts. For example, three glasses of milk a day may cause an individual excessive gas, but limiting milk to one glass per day may cause no problems. Sometimes tolerance to certain foods can be acquired.
Many people complain that adding fiber to the diet causes gas.
This problem can usually be reduced by adding fiber gradually over a period of several weeks. Hints for Reducing Belching Air swallowers should concentrate on trying to reduce the number of times they swallow air. They can increase saliva. Avoid foods that contain air, such as carbonated beverages or whipped cream, and fizzy medicines, such as bicarbonate of soda. Gulping food and beverages add large amounts of air into the stomach.