Celebrity weight loss transformations are no easy feat. Simply put, for the vast majority of people, celebrities included, losing weight just isn't easy. It takes a lot of hard work, will-power, abstinence, and even the right genetics to be able to keep it off, let alone lose it in the first place, according to U.S. News & World Report. That's why so many diets wind up failing in the long run.

However, there are some people who not only make the commitment to lose weight, but also have the grit and determination to keep it off.

That includes celebrities, whose dramatic transformations are front and center in the media due to their high profiles. And over the last decade, there have been a handful of famous folks who made the big change — and really stand out from the rest in their new, slimmer form.

So just who is it that found a way to shed the excess pounds and look like an entirely new person? And what did they do in order to drop the weight they no longer wanted to carry around? Read on the learn everything about the most gorgeous celebrity weight loss transformations in the last ten years.

Graham Elliot worked his butt off to achieve a celebrity weight loss transformation

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Celebrity chef Graham Elliot, by virtue of his profession, is constantly around food, which likely made any kind of celebrity weight loss transformation difficult. To that end, at the beginning of the decade, Elliot's weight was hovering just around the 400-pound mark, something he decided had to change after visiting his son Milo's kindergarten class. "A fellow student put a soccer ball under his shirt and said, 'Look at me, look! I'm Milo's dad. Look how fat I am,'" he recalled in an interview with WTTW News.

"That's when it was clear to me that not only was it, you know, my health I had to worry about ... but also, he was going to be embarrassed [of me]." So Elliot made the decision to get weight loss surgery.

Years later, Elliot is still rocking his new, svelter bod, having dropped well over 100 pounds, according to a post on his Instagram page. And unsurprisingly, he feels amazing, as it's "like an entire person has been lifted off my shoulders," he noted.

Mama June went "from not to hot" in the last decade of her celebrity weight loss transformation

Reality television viewers were first introduced to June "Mama June" Shannon in 2012, when she and her daughter appeared on TLC's Toddlers and Tiarasand later Here Comes Honey Boo Boo. Back then, Shannon clearly wasn't interested in healthy eating and nutrition, and she frequently fed her family some questionable foods.

Since then, however, Shannon has dropped a significant amount of weight following surgery, a celebrity weight loss transformation that has been chronicled on the show Mama June: From Not to Hot. But while she does look fantastic on the show, Mama June's stunning transformation has taken a toll on her.

"I've had so many surgeries in my last six months that I've had to lay down," she confessed in a 2018 interview with E! News. "I haven't been able to go to the gym." She added that she's gained back some of the weight she lost, but she's fine with it, as she felt like she lost too much, too fast.

Unfortunately, Shannon got into some legal trouble in 2019, according to TMZ, and she has reportedly been battling addiction issues. We hope she gets the help she needs.

Jonah Hill learned to love himself and underwent a jaw-dropping celebrity weight loss transformation

When Jonah Hill broke into the film industry in the teen comedy Superbad, he was definitely not a small dude. But as the next decade began, Hill, who's just one of the men who've been body-shamed by Hollywood, decided that he was ready to make the changes needed to shed unwanted pounds — without weight-loss surgery. "I went to just a nutritionist," he revealed in an interview with ABC News. "He really helped me understand nutrition." And that put vegetables on the menu for Hill for perhaps the first time in his adult life, something he truly enjoys now, especially in Japanese food.

Hill's weight has fluctuated here and there in the last ten years, but, as a whole, he has maintained the majority of his weight loss.

"I'm under construction, like we all are," he shared in an interview on The Ellen DeGeneres Show. "We're all just trying to figure it out." Amen to that, Jonah!

After undergoing a dramatic celebrity weight loss transformation, Hill also released a free zine in 2018 as a compliment to his film Mid90s, with the goal of helping people learn to love themselves as he has, according to a post on his Instagram page. Talk about wholesome.