K talked about him being out of playing shape; Greenberg talked about him being overweight; Zion himself said in the GQ article that he gained 100 pounds in two years in high school. No one is saying he's a fat slob or that he's going to end up hunting down Lucky Dog carts at night. His size is one of the most fascinating things about him, but when the force of your body weight causes your sneaker to explode, it is also something to watch.
I've never heard anything about Zion having a history of problems controlling his weight. Yes, K was talking about him not being in playing shape for summer league because of his demanding schedule of appearances and being away from the court.
As I've always said injury is my only concern with him because of his explosiveness and strength/size. It was the same thing for Bo Jackson but telling Bo to trim down to 200 lbs. and Bo would no longer be Bo. Same goes for Zion, IMO. Being so strong, jumping so high, and being so explosive with his movements may put him at greater risk of injury than normal players but you start taking any of these things away and he's no longer the freak of nature that allows him to be an unstoppable force on the court.
Yes, he was 6'3 175 lbs. when he was 14 and is now 6'7 around 285, it's called growing which he still may be doing.
Zion was the biggest, strongest, fastest, most explosive player in college and he's going to be the same in the NBA. This isn't some fat guy who likes to eat everything, his build is huge because that's how he's built. Being built like a tank is what makes him so freaky. We don't know his ideal playing weight at the NBA yet but I really don't see it being 240 lbs. In my opinion that makes him less special. Jokic dropped down to 250 lbs. and thought it made his game worse, he bulked back up to 280 lbs. and was one of the best players in the league. I'm amazed anyone can watch Zion and think he's out of shape. Dude is about as solid as it gets.
If he's eating roast beef debris po'boys and boo fries every meal of course it won't be good for him but that goes for any athlete. I doubt any Bulls players are eating Italian beefs and Merkts cheddar fries every day. These are pro athletes.