The 'In Da Club' rapper – who shed an enormous amount of weight in just nine weeks for his part in 'Things Fall Apart' – has found it easy to put the weight back on and has been gorging himself on high calorie foods.
He explained: "It's the art of eating. The no complex route. It seems everything that is fun is no good for you. I had different things I don't usually have in my diet to put the weight back."
He continued: "I'm now 210lbs. I was a little fat boy, but I'm back at the gym. At my maximum weight I was 214."
In the movie, 50 Cent - real name Curtis Jackson - plays an American football player diagnosed with cancer and he slashed his weight from 214 pounds to an astonishing 160 with a liquid diet and three-hour-a-day treadmill walks for the role.
Shocking pictures posted on his website were captioned with the details of his weight loss.
The caption read: "50 Cent lost a lot of weight for his upcoming movie 'Things Fall Apart'. In the movie 50 Cent plays a football player diagnosed with cancer.
The 'Candy Shop' hitmaker can't wait until the movie comes out because he thinks his performance is fantastic.
He said: "I think the film project is going to be great, not just the transformation and the weight loss but my performance in itself. I'm excited to see it."