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10. Kumail Nanjiani Gave Up Carbs & Sugar For A Year To Get Into Shape - Eternals

Kumail Nanjiani proved to be the frequent show stealer in Eternals, playing wise-cracking superhero Kingo.

But Nanjiani didn't merely rest on his witty laurels, undergoing an extensive - and honestly, shocking - physical transformation into a ripped, chiselled pillar of a (super)man.

Beyond putting in hours at the gym with the best personal trainers money can buy, the actor also quit refined sugars and switched to a low-carb diet for around a year.

The results are impressive, though in a bout of tragic irony Kingo isn't shirtless for a single scene in the damn movie. That's gotta be crushing, even if Nanjiani seemed to get into shape mostly for his own sake rather than because Marvel told him to.