LAS VEGAS >> A Washington, D.C.-based anti-meat advocacy group is asking the owner of a Las Vegas restaurant that prides itself on unhealthy meals to shut down after a customer suffered a medical episode and was hospitalized.

Officials for the Physicians Committee for Responsible Medicine said Thursday they sent a letter to Heart Attack Grill owner Jon Basso, asking him to "declare moral bankruptcy" and close the restaurant.

Susan Levin, the group’s director of nutrition education, says the incident should be a wake-up call that bypass operations aren’t funny.

Basso says he hasn’t received the letter. He previously expressed sorrow for the victim, an unidentified man in his 40s.

Basso says it wasn’t a stunt, and he felt bad that tourists in the restaurant at the time thought it was a joke.

“It was no joke,” said Jon Basso, who promotes himself “Doctor Jon,” his scantily-clad waitresses as nurses and customers as patients.

Basso said he could tell right away the man in his 40s eating a Triple Bypass burger was having trouble. He was sweating, shaking and could barely talk.

Paramedics were called Saturday night, fire spokesman Tim Szymanski said, and the man was hospitalized. His name and information about his condition weren’t made public.

Giggles can be heard on the soundtrack of amateur video showing the man on a stretcher being wheeled out of the restaurant where patrons pass an antique ambulance at the door and a sign: “Caution! This establishment is bad for your health.”

Eaters are given surgical gowns as they choose from a calorically extravagant menu offering “Bypass” burgers, “Flatliner” fries, buttermilk shakes and free meals to folks over 350 pounds.