Myth Debunking: Beans cause gas

black beans

Beans are an important part of my diet as a legume with a high fiber and protein content.[1] I eat them daily, and it hadn’t crossed my mind recently that they may cause gas, until the subject came up during work discussions surrounding our Cinco de Mayo potluck preparations. Since then, I’ve been wondering: are beans a musical fruit that makes you toot?

A recent research study found that the myth that beans make people gassy is vastly exaggerated. Less than 50% of participants became more gassy when they introduced beans into their diet, and black-eyed peas specifically caused less than 19% of participants to become flatulent.[2] So while one type of bean may make you fart, your body may react differently to another kind of beans.

Another study found that if you pre-soak beans prior to cooking them you actually allow them to ferment a little, which introduces bacteria that prevents flatulence.[3][4] Therefore, the gas you may experience after eating beans could also be caused as a result of how they were prepared.

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