Rainn Wilson - star of comedy smash hit The Office has revealed that he's adopted a plant-based diet - and feels great on it.
The comic, who played the role of dorky Dwight Schrute on the series, let his fans know about the lifestyle change on his Instagram page.
According to the post - titled The Fifty Year Old Vegan - the star and his wife have been following the plan for six weeks.
He wrote: "So about six weeks ago or so, my wife Holiday Reinhorn and I decided to try veganism for a month. (Is that a thing? A word? VeganISM?) As an experiment.
"We were so dependent on eating animals and animal products, we just wanted to try it. Give our digestive systems a change-up.It was TOUGH [sic]."
The actor says he felt 'tired and crank' for the whole first week of his plant-based experiment, saying he 'wanted a steak and eggs so bad'.
He added: "But then, sometime in the second and 1/2 week, things shifted dramatically.
"I noticed that I had more energy! I was sleeping better and deeper. I didn’t need naps in the afternoon as much. I started to drop some pounds.
"And, bonus, it’s supposed to be good for the planet."
Despite touting the environmental benefits of a plant-based diet, Wilson says he has 'no moral issues with killing and eating animals'.
He added: "But the health and planetary benefits seem pretty good. Who knows, I may start adding some fish or some eggs. Or some fish eggs.
He also appeared to taunt the stereotypical image of a vegan in his closing statement.
Wilson wrote: "But I’m enjoying the journey so far and want to leave you with a single promise: I will not be one of those a**hole vegans who is always talking about how they're vegan."