Kim Kardashian proudly wears a white bikini while she walks the beach in Miami. Losing the pregnancy weight has been the "greatest challenge of my life," Kim told Jay Leno. Kim claims that she is loosing the weight by dieting and exercising, but we have our doubts.

We are nonetheless proud of Kim, who seems to be working hard in order to wear the bikinis she used to. A source close to Kim says: "she wakes up and does more than 100 squats every single morning". She also has a personal trainer and chef who are on the road with her as she accompanies her fiancée Kanye West on his Yeezus tour.

A source told People.com; "She's got a trainer on tour with her and a chef to keep her meals carb free ... with the exception of some cheat days, because she is realistic now, she sticks with it!"

Another source told Now Magazine that Kim has reached her weight goal but that now wants to get down to a size 0, a size that Kim has never been. The source says "she's eating 1,000 calories a day and drinking herbal teas in a bid to shed the weight ... she also wakes up for daily 5am workouts and often does another hour in the afternoon". Wow, that's intense.

But since Kimmy has enough money to have a personal trainer, a chef and surgical procedures... we don't know if this is all the results of exercising. Kim does appear to be at a healthy weight instead of some unrealistic miracle weight that only surgery can provide. But we still have our doubts. Remember when those rumors were going around about her begging paparazzi to not photograph her going into a plastic surgery clinic? Makes you wonder, huh?

However, Kim really does cherish her relationship with Kanye and he has banned Kim from getting surgery. Kanye has a personal vendetta against surgery since his mother died during a liposuction procedure. Could Kim really be getting work done behind everyone's back? Or is her physique the result of hard work and dedication?