Italy's politics is turning into a food fight. Or more precisely, a food label fight. The country's frontline Euroskeptic, Matteo Salvini, has found yet another reason to attack Brussels. And this time he is whipping up almost universal support at home as he seeks to shoot down Europe's increasing usage of so-called traffic light labels.

Health activists say a red-to-green scale marking a product's salt, sugar and fat is an arresting way to alert people to what they are eating, but Salvini sees the system as an anti-Italian plot against the Epicurean nation's rich, oily delicacies.