Check out Magic Johnson's son EJ Johnson ... showing off his physique this week after dropping more than 100 POUNDS over the past year!
The "Rich Kids of Beverly Hills" star says he underwent gastric sleeve surgery back in 2014 -- but claims the surgery merely "jumpstarted" him to start living a healthier lifestyle.
Clearly, it's working ... and you can see it in this new pic he took with Rosanna Scotto from FOX 5 in NYC.
In fact, he told Wendy Williams he's absolutely determined to keep the weight off ... and says people like Jennifer Hudson serve as his inspiration.
"It's something that I struggled with and I needed that push in the right direction. And now my mindset is completely changed."