A 2013 review on SCD and other exclusion diets concluded: "However, we lack large prospective controlled trials to provide the dietary recommendations patients’ desire. Taken together, studies of exclusive enteral nutrition, exclusion diets, and semi-vegetarian diets suggest that minimizing exposure of the intestinal lumen to selected food items may prolong the remission state of patients with inflammatory bowel disease. Even less evidence exists for the efficacy of the SCD, FODMAP, or Paleo diet. " It also said that the diet risks imposition of an undue financial burden and potentially causes malnutrition.