nutrients Article Duodenojejunal Omega Switch Surgery Reduces Oxidative Stress Induced by Cafeteria Diet in Sprague-Dawley Rats Jakub Poloczek 1,2, Wojciech Kazura 3, Elz˙bieta Chełmecka 4 , Katarzyna Michalczyk 3, Jerzy Jochem 3, Janusz Gumprecht 2 and Dominika Stygar 3,* 1 Department of ...