He was recently spotted in Soho, and it kinda looked like he might have gained back a lot of the weight he lost for 21 Jump Street.
He originally was very proud of himself and made it seem like he'd stay slim after he talked about his new lifestyle, saying:
"It's not fun. I wouldn't say it's the most fun endeavor I've ever took on in my life — but it's important. And I'm enjoying it. If I eat something unhealthy now, I kind of feel a little weird and my body hurts."
So he must've been feeling weird and in constant pain after gaining back a good chunk of the weight.
It's all about perseverance. Just stick with it, Jonah and you can get back on the path to healthiness.
[Image via Pacific Coast News.]