The study aimed to validate dairy registrations as a diagnostic tool for IBS and fructose malabsorption and assess the fructose breath test (FBT) against symptom improvement on a fructose-reduced diet (FRD).
A total of 182 IBS patients underwent a structured trial with a two-week IBS diet followed by a four-week FRD intervention and assessments of abdominal pain and stool data.
Results showed significant symptom improvement with FRD, whereas FBT was ineffective in distinguishing patient responses, indicating VAS symptom evaluations are reliable for tracking IBS and FRD offers benefits regardless of FBT outcomes.