Weight Loss & Weight Gain

Beware, NBA forwards ... you might have a 6'9", 300 lb problem ... 'cause TMZ Sports has video of Glen "Big Baby" Davis putting in some serious work in hopes of making an NBA comeback.

Davis hasn't been in the league since the 2014-15 season ... but he wants back in -- and we've got footage of the guy busting his ass at the Sports Academy in Thousand Oaks, CA.

We're told Davis has been training at the S.A. 5-6 days a week -- working with a full team of specialists focusing on strength and endurance. He's also got a nutritionist and a "mindset development guru."

Michael Costello, fashion designer to the stars, is slimming down to comply with what he calls the industry standard -- "skinny bitch" -- and he's using lasers to do it.

Michael finished 4th on Season 8 of "Project Runway" and told us about the moment at a friend's wedding when he knew it was time to fight the fat. One button can change a lot.

He went to Dr. Rollins at Elite Body Sculpture in Bev Hills on Friday to get Airsculpt Laser Liposculpture on his stomach and waist. The procedure uses lasers to soften up your fat, then they vacuum it out. Michael says he dropped 2 sizes instantly.

Michael recorded the good doc going to work on him. Check it out ... if you can stomach it.

Rob Kardashian just left the hospital after getting treated for symptoms associated with his diabetes.

TMZ broke the story ... Rob checked himself into West Hills Medical Center Wednesday night near Hidden Hills. Our sources say he'd been stress eating because of his turbulent relationship with baby mama Blac Chyna. His weight gain and related issues triggered diabetes issues.

Rob left in a Maybach.

10:55 AM PST -- Almost simultaneously to leaving the hospital Rob posted an advertisement on Instagram about a weight loss program ... a seemingly huge bonus for the company, especially if potential customers think Rob's about to jump on board.

Blac Chyna's 39 pounds away from her post-baby weight goal but trust us -- no one would complain if she stopped now.

BC was out with King Cairo strutting her goods Sunday ... and judging from those curves you'd never know she popped Dream out just a few weeks ago.

#MILFDoesABodyGood

Donald Trump gained a few lbs on the campaign trail, and a famous landmark in D.C. may exacerbate the problem in a big way.

Virginia Ali, the owner of Ben's Chili Bowl, is dead set on carrying on the tradition of stuffing the faces of presidents with greasy delectabilities. She's got her sights set on a plate of chili cheese fries and the chili half-smoke, with Donald's name on it.

Rob Kardashian's breakin' a sweat ... and it's more than just alright.

Rob joined big sisters Kourtney and Khloe for a CrossFit-style workout -- with some RiRi in the background for inspiration. Rob was working the middle hard ... courtesy of a medicine ball and some TRX bands.

Model Rosie Mercado went from 410 lbs to 170, but rather than celebrate her fitness ... she says people have told her to jump off a bridge over it.

We got Rosie at LAX where she reflected on her incredible weight loss. You can tell she's happy and excited about the change -- even though some of her fans do NOT feel the same way.

Check out the clip -- Rosie shared the crazy level of hate she's been getting. Seriously. You're about to see how mad people get over someone else's happiness. Translation: welcome to show biz.

Rob Kardashian and Blac Chyna have been fighting for months, partially because he's convinced she's going to leave him for a rapper.

Sources close to the parents-to-be say Rob's never been comfortable with aspects of Chyna's past. For instance, we're told he's brought up her relationships with Tyga and Future. Our source says she had to stop listening to certain songs when Rob was around because he once told her point-blank, "You'd rather date a rapper than a fat Armenian."

As we previously reported, Rob's spiraled back into depression, and has put on weight while they've been on the outs. Their convos these days are tense ... especially if Chyna suggests he work out and eat healthy. He takes it as an insult, but we're told she's concerned about his health.

Suffice to say, the days of couples workout sessions are a thing of the past.

Rob Kardashian has given up on life again, retreating to the confines of his home and gaining all his weight back ... so claim members of his family who are worried his life is now in danger.

Our Kardashian sources say ... Rob and Blac Chyna have split, and he's been living at his own home for nearly 2 months, almost never walking out his front door.

We're told Rob has gained back the 50 pounds he lost shortly after hooking up with Chyna ... again hovering around 300 lbs.

Our sources say it's become a vicious cycle. Rob has lost his motivation because of the weight gain, which has renewed fears his diabetes will spin out of control. You'll recall he was hospitalized months ago after a diabetes scare.

Rob is also MIA for his own show. Chyna -- who's 8 months pregnant -- showed up for an appearance to promote "Rob & Chyna" and he was a no-show. He didn't even stop by the baby shower that was thrown specifically for him a few days ago.

One big problem ... Chyna is the one who pulled Rob out of his depression, but now the relationship has become the big problem -- they fight whenever they're together and it just deepens the problems.

As one source put it, "Rob is slipping back into a dark place." We're told the family is praying he "snaps out of it," and they want to do whatever they can to help him.

Rob Kardashian has made an incredible turnaround in his fight against diabetes ... he's telling his family he's no longer diabetic ... TMZ has learned.

We're told Rob says he's in remission and his doctor told him he doesn't have to take medication for his type 2 diabetes.

He was hospitalized last December for his diabetes, which doctors warned could put him in a diabetic coma if he didn't maintain a healthy lifestyle.

Rob's been eating healthy and exercising regularly since he began dating Blac Chyna ... but he's not fully in the clear.

We're told doctors warned him his diabetes could come back if he falls off the wagon again.

Comedian and actor Lavell Crawford's not quite half the man he used to be, but he's getting there after dropping a buck 20 -- and his loss is a huge gain for someone else.

We got Crawford at LAX and it was immediately obvious the guy's looking much slimmer than he was in his days as extra husky bodyguard Huell on "Breaking Bad."

Lavell says his wife doesn't want him getting too skinny though, and she's got a magic number in mind. As he put it ... "She married me as a bear. You don't wanna date no bunny rabbit."

Lavell had some medical assistance to lose the weight, and he explained what else he's doing to drop the lbs. And that's all on top of his jiu-jitsu training!

Amber Heard arrived back in L.A. after getting fitted for her "Justice League" costume in London ... exactly one week after the fitting was supposedly cancelled because she was 20 lbs underweight.

TMZ broke the story ... Johnny Depp's team wanted to take Amber's deposition a week ago, but her lawyers said she was unavailable because she was going to London for the movie fitting.

We found out Amber never went, and her people said the fitting had been cancelled because she had been so stressed out she lost 20 lbs ... so the fitting was scrapped.

Our Johnny sources are scoffing ... they never believed she was supposed to be in London a week ago and that the story was concocted so she wouldn't have to be cross-examined under oath about the alleged beating.

Fact is ... she looks thin in the video.

DJ Khaled is so on his grind ... the man can't even slow down to change his clothes.

Khaled was bolting from a music video shoot in Queens with Jay Z when he momentarily went topless ... as his entourage helped him with a wardrobe change.

Khaled's been working on his fitness -- earlier this year he did a 22 day vegan diet challenge, and also went gluten-free. Tuesday morning he was logging treadmill time ... mogul-style, of course.

"The Biggest Loser" is under fire by former contestants, but a past champion says the woman blaming the show for regaining tons of weight needs to take a look in the mirror.

Ali Vincent won 'BL' season 5 -- and recently gained all her pre-show weight back.

But unlike Suzanne Mendonca and others, Ali says her weight gain was her own fault and she's working hard on her own to get it off.

As for the class action lawsuit Mendonca says she's filing ... Ali calls it "preposterous." She had other choice words for 'BL' haters.

Eddie Lacy went all Rocky Balboa (from "Rocky IV") in his off-season workout -- training in the snow TWICE A DAY with his P90X trainer Tony Horton.

Horton -- who created P90X -- spent months helping the Green Bay Packers running back trim down for the season ... and judging by the last video we shot of Lacy, it worked. Dude's pretty ripped now.

So, we asked Horton how he got Lacy back to form -- and the training regimen he revealed is pretty hardcore ... including some snow shoveling sessions in Jackson Hole.

Horton says Lacy was a natural when it came to working out -- but there was ONE exercise the guy couldn't stand.

Suzanne Mendonca says "The Biggest Loser" ruined her life, making her fat, unhealthy and flat broke ... but sources connected with the show say she's just a malcontent.

Mendonca was in NY Monday when she told our photog she's gained a ton of weight since appearing on season 2 of 'Biggest Loser.'

There are more serious allegations ... Suzanne claims the show withheld water, overexercised them and simply discarded them when the cameras stopped rolling.

Suzanne says she's in the process of corralling other contestants and filing a class action lawsuit.

Show producers tell TMZ, "We stand by the integrity of the show. The safety and well-being of our contestants is, and has always been, our #1 priority."

Bob Harper came on "TMZ Live" recently and talked about the difficulty of keeping weight off after the show.