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There are 498 calories in a 1 sandwich serving of Which Wich Turkey Sandwich. Calorie breakdown: 6% fat, 65% carbs, 28% protein.
Fast food chains are serving up fried treats loaded with up to 2,000 calories - the daily recommended intake for U.S. adults. The cheesy sandwich weighs in at 980 calories, although Panera is ahead of its competitors by posting the calories on its menus.