Most calorific burger commercially available

Heart Attack Grill in Las Vegas, USA, includes in its menu the 1.444-kg (3-lb 2.94-oz) Quadruple Bypass burger packing 9,982 calories. This equals 6.91 calories per gram (195.95 calories per ounce). In April 2012, the burger sold for $16.63 (£10.50; €12.70), bacon included, sales tax excluded. Heart Attack Grill Las Vegas prides itself in being the world's unhealthiest restaurant. The Quadruple Bypass burger includes 4 x ½ pound hamburgers, 3 tablespoons of lard, 20 slices of bacon, 8 slices of American cheese, 20 slices of caramelized onion baked in lard, 8 tomato slices, 1 tablespoon of mayonnaise, 2 tablespoons of ketchup, 1 tablespoon of mustard and 1 bun for a total weight of 3.184 lb (1,444 gr). Customers may opt for the Heart Attack Meal, which includes fries and a shake and brings the calories count to 12,410. The Quadruple Bypass burger is an original food item on Heart Attack Grill's menu where it was introduced in October 2005.