The Heart Attack Grill, Las Vegas' shrine to unhealthy eating, said another diner had to be wheeled away from the restaurant on a stretcher after chowing down on one of its infamous "Bypass Burgers" -- the second since February.
Owner Jon Basso told KVVU-TV that the patron, believed to be in her mid-40s, was eating a Double Bypass Burger when she suffered an apparent heart attack.
"I would say the woman gave her body every single thing it could handle, and it finally gave out," Basso told the TV station.
Basso said the diner was also drinking alcohol and smoking before falling onto the floor unconscious.
It's the second time in three months that one of the restaurant's customers has collapsed while devouring one of its signature burgers. A man in his 40s was enjoying a 6,000-calorie Triple Bypass Burger when he began sweating, shaking and experiencing chest pains. He was hospitalized and released.
The Heart Attack Grill is no stranger to controversy, with slogans like, a "Taste worth dying for!" and a house policy that allows diners weighing more than 350 pounds to eat for free.
According to the TV station, the burgers range from the Single Bypass to the Quadruple Bypass, featuring four half-pound patties and eight slices of American cheese. Diners can also add 20 slices of bacon for a small charge. The quadruple burger touts 9,983 calories -- a Guinness World Record.
"We attract an avant-garde clientele -- thrill seekers, risk takers," Basso told the Los Angeles Times. "It attracts people who don't really take good care of their health."
Basso said he's been following the woman's condition and that she is recovering at an area hospital.
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