Michelle Pfeiffer has gone vegan, and she’d like to thank former president Bill Clinton for inspiring her to make the switch. The actress, who describes herself as a “foodie,” said Clinton’s success with the diet also made her a believer. “OK, Bill Clinton loves food, so there must be something that’s making him stick to it” she said.

Pfeiffer went on to read the book Prevent and Reverse Heart Disease by Dr Caldwell Esselstyn, and determined that going vegan was the best option for her. “I just felt like … there was science behind it,” she said. “And, you know, it was sort of irrefutable. … I couldn’t not listen to it. My father died from cancer, and the older you get, there’s a lot of disease around you. And you see people struggling with chronic disease. You see people dying with terminal illnesses. And if in any way … this is true, then you kind of have to listen to it.” The actress says her health isn’t the only reason for the new diet. “Vanity is right under there,” she admits, “but I have to say that it’s a close second with wanting to live long.” Pfeiffer’s husband is also trying to eat vegan.