Rob Kardashian in Feb. 2011 (left) and in Dec. 2012
Scott Kirkland/Getty, Seth Browarnik/Startraks
By Cara Lynn Shultz
02/28/2013 AT 01:30 PM EST
Breaking up is hard to do. And if you're in the public eye like Rob Kardashian, it's proven to be a weighty issue.
The reality star is looking to shed 50 lbs., reportedly gained after his breakup with singer Rita Ora. He's now hard at work to take off the weight, sharing his progress (and frustrations with his "fat boy" breakfasts!) with his fans on Twitter and Instagram.
See what his workout soundtrack includes, and check out his best pics of his healthy meals and workouts below.