'Glad I'm getting better!': Rob Kardashian shares impressive before and after photo of his 50lb weight loss transformation 

He is down 50 pounds as he is in the midst of his fitness journey.

And Rob Kardashian recently showed just how far he's come.

The 29-year-old reality star took to Instagram on Wednesday to share a before and after image of his very impressive transformation.

What a difference! Rob Kardashian took to Instagram on Wednesday to share a before and after image of his impressive weight loss

What a difference! Rob Kardashian took to Instagram on Wednesday to share a before and after image of his impressive weight loss

In both images he could be seen wearing all-black while walking around as it showcased a drastic change in body shape.

He captioned the image originally posted by his fiancée's Instagram fan page @BlacChynaArmy with the message: 'LOL!! [several emojis] still got a lot of work to do and weight to lose but glad I'm getting better :):):)'

It appears his new 28-year-old fiancée Blac Chyna is keen to change his ways though as the star has regularly been posting about his weight loss journey.

Slimming down: The 29-year-old reality star has reportedly lost 50lbs as he is pictured on an outing in Beverly Hills on Friday

Slimming down: The 29-year-old reality star has reportedly lost 50lbs as he is pictured on an outing in Beverly Hills on Friday

On April 13 he took to Instagram to share a picture with his 5.9m followers as he captioned it:

'Looking from where I started 298lbs to my current weight now 248.4lbs ) I’m focused and determined to reach my goal weight 200-205lbs …. Happy I found my motivation.'

Rob, who is expecting his first child with his model fiancée, has been struggling with his weight for years and was even hospitalized with diabetes complications late last year.

However he didn't listen to his famous Kardashian family.

It's only since he started dating Blac that he's changed his unhealthy ways. She helped get him on a low-carb, no-red-meat diet. And he's now exercising five days a week with her and a trainer.

Bling bling: Rob took to Snapchat on Wednesday night to share a snap of ostentatious his 'n' hers Rolex watches with fiancée Blac

Bling bling: Rob took to Snapchat on Wednesday night to share a snap of ostentatious his 'n' hers Rolex watches with fiancée Blac

Wow factor: The couple spent $275K on watches including an out of production GMT Master 2 worth $150K for Rob according to a Wednesday report from TMZ

Wow factor: The couple spent $275K on watches including an out of production GMT Master 2 worth $150K for Rob according to a Wednesday report from TMZ

Wow factor: According to the gossip site, Chyna picked up two rose gold timepieces including this diamond-encrusted one for $90K

Wow factor: According to the gossip site, Chyna picked up two rose gold timepieces including this diamond-encrusted one for $90K

Lap of luxury: She showed off several of the other watches in celebrity jeweler Nick Bhindi's case 

Lap of luxury: She showed off several of the other watches in celebrity jeweler Nick Bhindi's case 

One thing that definitely seems to be healthy is Rob's bank account as he took to Snapchat on Wednesday night to share a video of stentatious his 'n' hers Rolex watches with Blac.

The couple recently purchased three extravagant timepieces from celebrity jeweler Nick Bhindi which reportedly totalled $275K.

Rob picked out a GMT Master 2, which is no longer in production, as Chyna is the proud new owner of two rose gold watches according to a Wednesday report from TMZ.

The gossip site's sources claim that the Kardashian brother's was around $150K while Chyna's diamond-encrusted timepiece was worth $90K while the one without the jewels was a modest $35K. 

Baby on the way: On Monday, the couple's unborn child made his or her Instagram debut as Blac shared this ultrasound snap and told fans 'fairytales DO come true'

Baby on the way: On Monday, the couple's unborn child made his or her Instagram debut as Blac shared this ultrasound snap and told fans 'fairytales DO come true'

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