Carlo Lovati1, Anna Freddi2, Fulvio Muzio3, Leonardo Pantoni2. 1. Headache Center, Neurology Unit, L. Sacco Hospital, University of Milan, Milan, Italy. carlo.lovati@tiscali.it. 2. Headache Center, Neurology Unit, L. Sacco Hospital, University of Milan, Milan, Italy. 3. Dietary Unit, L. Sacco Hospital, University of Milan, Milan, Italy.