According to this month's issue of the Mayo Clinic Health Letter, dairy products, vegetables, fruit sugar, fiber, sweeteners, fatty foods and carbonated drinks may all be associated with flatulence, although which specific foods cause it varies for individuals
Avoiding fried foods, fatty meat and carbonated beverages can help reduce gas. The sugar lactose in dairy foods is a common cause of gas, although many who are bothered by dairy products may still be able to eat yogurt. Some carbohydrates found in onions, radishes, cabbage, celery, carrots, brussels sprouts, broccoli, cauliflower and legumes such as dried peas and beans can also produce gas. Another cause could be too much fiber.
Fruit containing large quantities of sugar can also be the culprit. These include prunes, raisins, bananas, apples, apricots, and juices made from prunes, grapes and apples. Some sugar-free sweeteners, such as sorbitol, mannitol and xylitol, can also cause flatulence.
* NutraIngredients.com January 4, 2008