“Many of the Prego sauces—whether cheesy, chunky, or light—have one feature in common: The largest ingredient, after tomatoes, is sugar. A mere half cup of Prego Traditional, for instance, has more than two teaspoons of sugar, as much as two-plus Oreo cookies, a tube of Go-Gurt, or some of the Pepperidge Farm Apple Turnovers that Campbell also makes.”