Loud borborygmi or rumblings also occur because of vigorous contraction caused by diseases of the intestine like Crohn's disease or to overcome obstruction. These conditions are associated with other symptoms such as severe abdominal pain and should be reported to your doctor. Often this is because an embarrassing incident like a loud or smelly break of wind in public has led to the belief that something is wrong. A high fibre diet produces more wind than a low fibre diet or a low carbohydrate diet. But whatever your count you may wish to reduce it.
Most flatus is generated by the normal bacterial fermentation of food residues in the colon.
But they don't. Although the bacteria are killed off by the antibiotics they quickly re-establish themselves. Besides, antibiotics produce more flatus in most people. A high fibre diet has mixed blessings. It produces a soft satisfying stool, protects against colon cancer and may protect against stroke and heart disease, may help people to lose weight, and improves symptoms in irritable bowel syndrome.