Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, Avinguda Prat de la Riba 171, 08921, Santa Coloma de Gramenet, Spain. Electronic address: [Email]
Histamine intolerance is a disorder in the homeostasis of histamine due to a reduced intestinal degradation of this amine, mainly caused by a deficiency in the enzyme diamine oxidase (DAO). Among histamine related symptoms, headache is one of the most recorded. Current clinical strategies for the treatment of the symptomatology related to this disorder are based on the exclusion of foods with histamine or other bioactive amines and/or exogenous DAO supplementation. The aim of this study was to assess the efficacy of a food supplement consisting of DAO enzyme as a preventive treatment of migraine in patients with DAO deficiency through a randomized double-blind trial.