"I have been about 80% plant-based for the past five years of my life," Schwarzenegger told fans.

"Even though I still eat meat sometimes, because I can't resist a juicy steak when I have friends over or a crispy wiener schnitzel in Austria, I mostly eat plant-based because it is better for my overall health, and as my friend Jim Cameron taught me, better for the environment because the clearing of forests and the raising of animals for meat causes so much pollution."

And Schwarzenegger said that he's already seeing the health benefits of going mostly meat-free.

"My bad cholesterol number is so low that my doctor thought I might be a different person and [I] feel healthier and younger overall," he said.

...Schwarzenegger's switch to a plant-based diet was one of the ways he's improving his heart health. In 2018, he underwent heart surgery to replace a pulmonic valve, and in Oct. 2020 he had a second major surgery to replace his aortic valve.

...Schwarzenegger's 2018 surgery was initially supposed to be less invasive, but after putting him under anesthesia they determined that he needed a full open-heart surgery."