Observational study shows higher exhaled hydrogen with food intolerance in patients with fructose malabsorption, suggesting Helicobacter pylori plays a role.
In patients diagnosed with FM, the presence of additional food intolerance/malabsorption and H. pylori infection has been demonstrated to significantly increase expiratory H₂ values during fructose H₂ breath tests.
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Schnedl et al. (2025) studied this question.
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