According to the Huffington Post, a number of things go into the rankings. In this case, Chastain and Harrelson have been vegetarians for a total of 45 years.
Chastain has been a vegetarian for 15 years and went vegan five years ago.
"I don't want to torture anything," Chastain said, according to the Huffington Post. "[I]t's about trying to live a life where I'm not contributing to the cruelty in the world… While I am on this planet, I want everyone I meet to know that I am grateful they are here."
Harrelson has been meat-free longer, but does it for how it makes him feel.
"I just let people see my energy and how strong I stay," he said.
Harrelson’s became a vegetarian even before he was famous because of one chance meeting.
“[Harrelson] has been vegan for nearly three decades,” said PETA. "He had his ‘aha’ moment when he was trying to make it as an actor in New York." "I was on a bus and some girl sees me blowing my nose, I had acne all over my face, which I'd had for years and years. And she's like: 'Hey, you're lactose intolerant. If you quit dairy, all these symptoms you got will be gone in three days.' I was like 24. And I was like, No way. But three days later: gone," explained Harrelson.
PETA also puts a number on the animals saved by the two actors.
“Since the average vegetarian saves about 100 animals' lives every year,” they said, “Jessica and Woody's combined 45 years of cruelty-free eating have saved at least 4,500 animals.”
Some runner-ups for the awards included Alicia Silverstone, Anne Hathaway, Diane Keaton, Alyssa Milano, Carrie Underwood, Alan Cumming, Ben Stiller, Bill Clinton and Casey Affleck.
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