Muffins can have quite a lot of calories. The (admittedly fairly large) ones at Costco are over 600 calories: http://www.myfitnesspal.com/food/calories/kirkland

Muffins can have quite a lot of calories. The (admittedly fairly large) ones at Costco are over 600 calories: http://www.myfitnesspal.com/food/calories/kirkland-costco-blueberry-muffin-205473697 http://www.myfitnesspal.com/food/calories/kirkland-costco-bl...