Can oats cause digestive problems?
Eleanor Gray
Updated on March 25, 2026
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Then, can oats upset your stomach?
Some people who find themselves experiencing symptoms after eating oats may not be allergic to oats at all, but rather, may have gluten sensitivity or celiac disease. You may also experience gastric discomfort when eating oats if you are overly sensitive to high-fiber foods.
Likewise, can oats cause indigestion? Oatmeal: Oatmeal is packed with fiber, which is linked to a lower risk of acid reflux. This fiber does not contain FODMAPs, so does not cause belching or reflux (25, 40 ). Grains and potatoes: Research has found that consuming grains and potatoes is linked to a 42% lower risk of gastroesophageal reflux disease ( 41 ).
Beside this, why can't I digest oats?
Oats contain a protein called avenin, to which some people are intolerant or even allergic. As a defense, a person with a food intolerance or food allergy will make an antibody to the protein of a food. That particular food protein is called the antigen.
Can oats trigger IBS?
Whole grains, vegetables, and fruits contain fiber. Although fiber tolerance is different for different people, insoluble fiber may cause or worsen diarrhea in some people with IBS. Foods with soluble fiber include: grains, like oatmeal and barley.
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