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Figure 1 | BMC Gastroenterology

Figure 1

From: Excretion of urinary histamine and N-tele methylhistamine in patients with gastrointestinal food allergy compared to non-allergic controls during an unrestricted diet and a hypoallergenic diet

Figure 1

A large number of patients with functional adverse food reactions were identified as carbohydrate malassimilation with/without small intestinal bowel overgrowth (SIBO), while a minority had non-allergic food intolerance or Irritable Bowel Syndrome (IBS). Among the remaining 225 patients an allergic disease could be excluded definitively, while 153 had strong clinical suspicion of gastrointestinally mediated allergy (GMA) and were scheduled for confirmatory food challenge tests. However, only in 56 patients completed diagnostics was obtained and this group with confirmation of allergy is further described as study group GMA.

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