Pertaining to a tendancy that causes, or produces gas that is trapped in the digestive system: Certain foods can be considered to be flatulogenic or "gaseous".

Some foods are flatulogenic, earning them the reputation of being the top flatus producers, including beans, bran, broccoli, Brussels sprouts, cabbage, cauliflower and onions. For some people, beer, carbonated beverages, and milk can also be flatulogenic.

There are some foods that are mildly flatulogenic, such as apples, apricots, bananas, carrots, celery, all citrus fruits, cucumbers, eggplant, lettuce, potatoes, prunes and raisins. Radishes, soybeans and spinach can also be classified under these flatulogenic groups.