“…40 In Germany CAM is more incorporated into conventional medical systems 43 and consequently the rates of CAM and probiotic use 40,41,43 are frequently higher than other European countries. 5,32,35,44,45,47 This variation in CAM use between countries highlights the need for a control group drawn from the same population in order to detect IBD-specific CAM, probiotic, and prebiotic use. However, very few trials in IBD have used a control group against which to compare CAM use, and none have done so for probiotics or prebiotics.…”