What are the causes of excessive chronic flatulence?

Updated July 19, 2017

Flatulence is a normal body function caused by the build-up of excess gas in the body. However, excessive flatulence is not normal and can be caused by several different factors.


Foods such as beans and artichokes can cause an overproduction of bacteria in your stomach, which can lead to excessive flatulence. Consuming foods which contain high amounts of fibre, such as beans and brown rice, also causes flatulence.

Fructose intolerance

Fructose intolerance causes excessive flatulence, diarrhoea, and bloating in intolerant people who eat prunes, pears and apples.

Lactose intolerance

75% of people are lactose intolerant, which can cause excessive flatulence anytime you eat products containing dairy.

Irritable Bowel Syndrome (IBS)

The exact cause of IBS is unknown, but it is believed mental stress causes physical discomfort in the bowels. Symptoms include, bloating, cramping, constipation and flatulence.


Gastroenteritis is inflammation of you GI tract and results in acute diarrhoea, in addition to flatulence. Gastroenteritis is caused by bacteria in undercooked meat.


To lessen excessive flatulence, drink more water, eat and chew food slower, and avoid sudden increases of fibre in your diet. Avoid eating beans, cabbage, brussel sprouts, broccoli and peas. If you are lactose intolerant, you should avoid dairy products.

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About the Author

David Benton has been freelancing since 2004. His clients include Kaizen Publications, Metrowest Homes and Rubicon Publishing Inc. He graduated from California State University at Fresno with a Bachelor of Arts in English and received his Master of Arts in English from National University.