Rob Kardashian’s struggles with his weight have been well-documented, and the reality star has been open about his efforts to shed the extra pounds in recent years.

Just last month Rob was hospitalized after a flare-up in his diabetes symptoms, reportedly brought about by an episode of extreme binge eating.

Now, it seems the incident may have inspired Rob to go under the knife as part of his effort to regain his health.

According to OK! magazine, Rob is planning to undergo gastric bypass surgery after learning that he’s surpassed the 300 pound mark.

“He’s not lost any weight at all and he’s all but given up on it happening the hard way,”  

“He considered a stomach stapling last year, but Chyna talked him out of it and got him in the gym.,”

For a while, the non-surgical approach appeared to be working, but Rob’s weight loss seemed to stall around the same time that he and Blac began experiencing their latest wave of relationship troubles.

Rob’s hospitalization took place just days after he tweeted that Blac had left him and taken their 2-month-old daughter, Dream Kardashian, with her.

Shortly thereafter, sources indicated that the move was preceded by a violent fight, during which Blac drunkenly beat Rob and had to be physically restrained by Kris Jenner’s boyfriend, Corey Gamble.

Shockingly, the couple later reconciled, and sources say Blac is not pleased that Rob has decided to go the surgical route.

“She’s disappointed he’s going to do this – it’s a pretty extreme op,” says one source.

The insider claims that Blac is concerned about Rob’s weight, but there’s reason to believe that she wants him to hold off on the procedure for purely selfish reasons.

When they first got together, Blac vowed to help Rob lose weight, and it was rumored she planned to use his transformation as a launch pad for a career as a professional fitness guru.

Obviously, the fact that she was unable to help her own fiance slim down despite daily access might lead many to question Blac’s ability to help others get in shape with a series of overpriced DVDs.

Fortunately, she’ll soon have Rob’s last name to fall back on.

We’ll have updates on Rob’s surgery plans as more information becomes available.