Beans and legumes are high in fiber and complex carbohydrates, which can be difficult for some people to digest.
Cruciferous vegetables like broccoli, cauliflower, and cabbage contain raffinose, a sugar that can cause gas.
Dairy products like milk, cheese, and ice cream can be difficult to digest for people who are lactose intolerant.
Artificial sweeteners like sorbitol and xylitol can cause gas and bloating.
Fried and fatty foods can slow down digestion and cause gas.
Carbonated drinks like soda and beer can cause gas and bloating.
Whole grains like wheat and oats can cause gas in some people.