On Saturday, Sept. 5, Robert Kardashian took to Instagram to post a photo of himself appearing much slimmer than he has previously looked, TMZ reports.

In the photo, Kardashian appears to be in a restaurant eating a salad with his head down. Kardashian captioned the photo "Way off."

Check out Kardashian's photo below.

 Way off

A photo posted by ROBERT KARDASHIAN (@robkardashian) on Sep 5, 2015 at 2:07am PDT

Kardashian also posted a photo of himself looking slimmer last week, which has led many to believe that he is finally losing the weight he has been so desperately trying to get rid of.

Gnight A photo posted by ROBERT KARDASHIAN (@robkardashian) on Aug 30, 2015 at 10:46pm PDT

TMZ reports that Kardashian has been exercising and training with Gunnar Peterson to achieve his overall goal of losing 100 lbs.

People adds that, in addition to working out with a trainer, Kardashian has also been working out with his older sister Kim.

Prior to his weight loss, there were reports that Kardashian was extremely depressed and self conscious about his weight.  For months, Kardashian stopped appearing on his family's hit reality TV shows, and many speculated it was due to his weight gain and low self esteem.

Back in June, Gossip Extra reported that Kardashian admitted himself to rehab to deal with his various emotional and physical issues.

The report added that Kardashian would stay in rehab for two months, and the facility he chose had a ban on cellphone use and outside visitation for the first 1.5 months.

The media outlet also claimed to have spoken to Kardashian's close friend Mark Behar, who revealed that Kardashian has made the decision to cut himself off from California and his high-profile family.

"I proposed to Rob to check himself into a beachfront center in this area," Behar allegedly said. "He wants to cut himself off from California and the circus around his family. Rob is serious about it now. He doesn't like what he's become. He can stay (in the rehab center) until Christmas if he wants to."

Following Gossip Extra's report, Kardashian's mother Kris Jenner told E! News that the story was "false."