The former president now says he consumes no meat, no dairy, no eggs, almost no oil.

“I like the vegetables, the fruits, the beans, the stuff I eat now,” Clinton told Gupta.

The former president’s goal is to avoid any food that could damage his blood vessels. His dietary guides are Ornish and Dr. Caldwell Esselstyn Jr., who directs the cardiovascular prevention and reversal program at The Cleveland Clinic Wellness Institute. Both doctors have concluded that a plant-based diet can prevent and, in some cases, actually reverse heart disease.