28-year-old Rob Kardashian has been spending a whole lot of time in the gym with Blac Chyna as of late, and it looks like it’s finally starting to pay off as a new report claims he’s already lost a lot of weight.

Since teaming up with his girlfriend Blac Chyna, the reality star has taken some serious strides to improve his health, including cutting out fast food from his diet and putting in extra workout sessions in the gym. Now, it appears those efforts are finally paying off as a new report claims Rob has already lost a whopping 40 pounds!

It’s no secret that Rob has struggled a great deal in the past year, after gaining a reported 100 pounds, and being diagnosed with Type 2 diabetes. But thanks to Blac, it appears those days may finally be behind him. With Chyna’s help, Rob has been adhering to a strict diet and working out regularly, a regimen that friends close to the reclusive star tell TMZ has already helped him drop an impressive 40 pounds.