Jonah documented his lifestyle change in the documentary Stutz, in which he shared what inspired him to start his weight loss journey.
"The media kept being really brutal about my weight," he confessed. "It was just kind of free game for anyone to sort of hit my sore spot. It made me so defensive — like almost anticipating someone saying something mean.
"I'd be so angry. It kept me from feeling any sense of [being] able to grow past negative feelings about myself."
Jonah turned vegan and slowly learned to love and accept himself.
"It took a long time, honestly until right now, for me to come out as sort of the person, the artist, mind, what I represent, how I feel, how I’d like to be spoken to, how I speak to the world in a way that actually represents who I am as a person as opposed to me trying to be something else that I'm not," he said during a 2018 appearance on The Ellen DeGeneres Show.
It's not just on screen that Jonah has experimented with his style either.
He says he enjoys switching up his look away from the cameras now that he has the confidence to do so.
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He explained to GQ: "The idea was realizing, whether I was big or small, that I really can define my own personal style. I think that's a dope wave that's happening right now in culture, too.
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But for me, that was a big turning point of realizing: 'Okay, be yourself. You don't have to be anything you don't want to be. And if you're really interested in fashion then you should be, don't push that away. Lean into it.'"
James Jordan came back as petroleum engineer Dale Bradley for season two of Landman with a slimmer look after focusing on his health for nearly two years