London, August 7 : Kim Kardashian's trainer has revealed that she burns up 1000 calories in an hour through a miracle full body work out.

The 33-year-old model had recently tweeted that she is trying hard to get rid of her last 15-20lbs "baby weight" that she gained after giving birth to her baby North West, and feels frustrated about not being able to achieve the goal weight, the Mirror reported.

Celebrity trainer Joey Gonzalez, who helps the 'Keeping Up With The Kardashians' star with her weight, said that she had been going to gym regularly to focus on different areas of the body each day.

Gonzalez added that her great attitude and positive demeanor helped her through the toughest portions of the sessions. (ANI)