Several fans have been alarmed with the ailing health of Rob Kardashian especially when he was rushed to the hospital last week and has been diagnosed to having a diabetes. With this, his sister Khloe Kardashian and Dr. Mehmet Oz have their pieces of advice for the 28-year-old son of Kris Jenner.

Reports about Rob getting "bigger" than ever after a breakup has been surfacing the cyberworld for a long time already. Now, it seems like these reports are nothing but truth after Khloe posted in a new blog post telling her brother to not dwell in the past anymore.

"I told Rob a while back: the best form of revenge is a good body," the 31-year-old "Keeping With The Kardashians" star wrote on her blog. "It's a little silly but true. There is literally no downfall to working out your blues in the gym! You'll feel better, and the by-product will be a fierce bod that's bound to make your ex do a double-take."

The Kardashian-Jenner clan is now considering more drastic measures to get Rob on a healthy track. "They're planning on doing an intervention," an unnamed source told Us Weekly. "He's detached himself from everyone. Nobody knows what's going on with him until it's too late."

Meanwhile, Dr. Mehmet Oz also gave his piece of advice for Rob. The medical professional said that the recent hospitalization and diagnosis can be life threatening.

"[I got] 100 people in my studio who have all lost 100 pounds, and [asked] them all how they did it," Oz told Us. "I was going to get all 100 answers, and I was going to have the perfect library of how you actually lose weight. Except, they didn't have 100 different answers. They had one: self-esteem."

The 55-year-old doctor suggested that Rob has to change his perspective as it can also change his body. It was recently reported that Kris, Kourtney, Khloe and Kim Kardashian and planning to stage an intervention for Rob.