Which Vegetables Cause Gas?


Quick Answer

Vegetables that may increase gas production include asparagus, broccoli and onions. Gas is often caused by carbohydrate-dense foods, such as vegetables, because the sugars that these foods contain make the body work harder to digest them.

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Full Answer

Other vegetables that increase gas are Brussels sprouts, cabbage, mushrooms, cauliflower, cucumbers, green peppers, radishes, celery and carrots. The carbohydrates found in these foods are composed of sugars, such as raffinose, lactose, fructose and sorbitol. The small intestine is unable to absorb or break the sugars down, so when these vegetables are eaten they must be digested more than other foods.

Because of this, those sugars are sent through to the large intestine, where natural and harmless bacteria force them to decompose. This process produces the gases hydrogen, carbon dioxide, and in some people, methane, which get expelled through the rectum.

Most people notice an increase in gas once they start eating more fruits and vegetables. This can be bothersome, but it is natural. If it leads to excessive bloating and discomfort, keep a food diary to investigate correlations between certain foods and higher gas production. It is also a good idea to speak with a health care professional, since excessive and uncomfortable episodes of gas can sometimes be eased with the use of probiotics and digestive aids.

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