Background: Dietetic effects of mare's milk have been reported for a long time and can be based on bactericidal and immunological components of mare's milk.~Objective: Dietetic effects of oral intake of mare's milk in adolescent patients with chronic inflammatory bowel diseases were investigated.~Design: In a randomized, placebo-controlled, double-blind, cross-over intervention study, eight Crohn's disease patients and nine ulcerative colitis patients received daily 250 mL mare's milk or placebo drink.
Mare's milk consumption could improve the well-being in patients with Crohn's disease and ulcerative colitis, respectively.