Several days before his 65th birthday, former U.S. President Bill Clinton was in Port-au-Prince, Haiti. (Dieu Nalio Chery/AP)

When Bill Clinton was sworn in as president at 46, he could out-eat just about anyone. The more unhealthy, the better: burgers, steaks, barbeque, french fries and doughnuts. Oh, how he loved the donuts.

Nineteen years later, as Clinton turns a respectable 65, the former president is 20 pounds lighter and no longer on the verge of a heart attack. In an interview with CNN’s Sanjay Gupta, Clinton says that’s in large part because he has become a vegan.

Instead of consuming the high fat, French cuisine he so often did at the White House, Clinton now lives on a diet of vegetables, fruits and beans.

The former president says he realized he had “played Russian roulette” with his health for too long, and that since making the changes, “I feel good, and I also have, believe it or not, more energy.”

That much is clear. Just Thursday, Clinton helped announce a major new project to rebuild Port-au-Prince, which he visited this week. We’re guessing he’s subsisting on du riz colée a pois, the Haitian dish of brown rice with red kidney or pinto beans, while he’s down there.

Watch Clinton’s interview with Gupta below: