Fructose intolerance arises from the body's difficulty in processing fructose, a type of sugar present in honey, certain fruits and vegetables, and added to foods in various forms. Normally, receptors in our intestines help absorb fructose into the bloodstream. Some individuals have more of these receptors, allowing them to handle more fructose. When too much fructose overwhelms absorption, unabsorbed fructose reaches the colon, where bacteria break it down, leading to symptoms such as gas, bloating, diarrhea, and abdominal discomfort. Genetics often play a role in this condition, which can be mistaken for other digestive issues like irritable bowel syndrome (IBS).
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Symptoms of fructose intolerance include gas, bloating, diarrhea, and abdominal discomfort after consuming foods or drinks containing fructose.
Our dietitians might suggest testing for fructose intolerance based on your diet history and symptoms. To confirm, a non-invasive breath test can be done in our office or at home. You'll consume a fructose solution, and we'll analyze the air you exhale over the next three hours to gauge your body's ability to digest and absorb fructose.
Enhancing fructose absorption isn't possible, but management is achievable. If diagnosed, a mix of enzyme supplements and dietary changes can help. An over-the-counter enzyme supplement, taken before meals, can aid in tolerating fructose-containing foods. Learning which foods and drinks have concentrated fructose is crucial for symptom management. Our skilled GI dietitians will guide you in recognizing fructose-containing foods, reading labels, and navigating situations without enzyme supplements. While consuming fructose might cause discomfort, it doesn't harm your intestines long-term.