Seems like we get a skinny Luka every other off season and by the middle of regular season he is back up in weight.
Team needs to help him stay in shape not get in shape. Same goes for Embid. A lot of NBA guys do great work in the off season but can't maintain it with the grind of the season.
Even MJ and Kobe had their bodies change during the grind but they lost weight throughout the season.
NBA needs more rest and diet exploration programs during the season to figure it out.