Fans have been blown away by Ethan Suplee's huge physical transformation.
Suplee, who played Earl's dimwitted younger brother in the NBC sitcom My Names Is Earl, shared a before and after picture with his 607,000 followers of his journey.
He included the caption: "Once upon a time, the whole world was an impossibility.
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"Conquering all of it is still impossible, so I’m just concentrating on today.
"If today becomes too much, I will focus on right now. Right now, I’m ok, I will beat right now."
Many congratulated the actor on his weight loss while praising his pearls of wisdom, as one user wrote: "THIS! Great message and thank you for reminding all of us."
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Another said: "That's solid advice. Eye opening actually, starting my day right."
A third commented: "Loved him then, loved him now."
While another said: "Always loved you as an actor since day one! Happy to see your fitness journey and career as they both continue to progress. Looking forward to seeing more roles and content from you in the future."
The 46-year-old began his fitness journey nearly two decades ago when he reached over 250kg (550 pounds), which he explains in his podcast.
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He recalled having to use a freight scale to measure himself as he was too heavy for scales in his doctor's office.
In the first episode, Suplee detailed how he developed unhealthy binge eating habits at the age of five, making it incredibly difficult to break.
But aside from developing a food addiction, at his heaviest, he became addicted to drugs and alcohol, which he used to 'numb' the pain.
However, after becoming sober in 2002, Suplee decided to change his food habits as well.
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While speaking with PEOPLE, he knew he had to alter his life when first dating his now-wife as he struggled to keep up with her on dates.
"I became, for the first time in my life, kind of interested in the future and having experiences with her," he said.
"Like spending a day walking around a museum or going on a trip or hiking that I just wasn't physically able to do."
"I cannot say that actually losing weight has made me happier. I don't think that's true," he added.
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"I just think that achieving something I set out to achieve has given me this volume of happiness that is pretty great."
Charisa Bossinakis