Food elimination based
on IgG
antibodies in irritable bowel syndrome: a randomised controlled trial http://gut.bmj.com/content/53/10/1459.short «After 12 weeks, the true diet resulted in a 10 % greater reduction in symptom score than the sham diet (mean
difference 39 (95 % confidence intervals (CI) 5 — 72); p = 0.024) with this value increasing to 26 % in fully compliant patients (
difference 98 (95 % CI 52 — 144); p < 0.001).»