Heidi Montag: I Work Out 14 Hours a Day
- Photo: Pacific Coast News1 of 16
- Photo: WENN2 of 16
- Photo: STS/WENN3 of 16
- Photo: MTV/Promotional4 of 16
- Photo: Kabik/Retna Digital5 of 16
- Photo: Benassi/Splash News6 of 16
- Photo: VLUV/Splash News7 of 16
- Photo: Jesse Grant/WireImage.com8 of 16
- Photo: Life&Style/Promotional9 of 16
- Photo: Retna Digital10 of 16
- Photo: Benassi/Splash News11 of 16
- Photo: Sultana/Splash News12 of 16
- Photo: Judy Eddy/WENN13 of 16
- Photo: Jesse Grant/WireImage.com14 of 16
- Photo: Retna Digital15 of 16
Before she slipped back into a bikini for Saturday's party at Las Vegas' Wet Republic -- the last time she was photographed in a two-piece was April 2010 -- Heidi Montag spent some serious time in the gym.
"I've been working out from, like, 5 a.m. to 7 p.m. for two months now. I've been working out really hard because I had this pool party and I was like, I have to be in shape," she told Us Weekly. "And I was actually a lot overweight. It was the most I've ever been because I've kind of been in hiding eating pie with my husband and puppies, so I needed to get back in shape."
At her heaviest, the 5'2" reality star claimed she weighed 130 pounds; she's currently back down to 103. How did the "Hills" alum lose 27 pounds so quickly?
"I've been running a lot, and I've been doing weights," she said. "When you work out, you boost your metabolism, so you have to [make sure you eat enough]."
Montag -- who listed pie and fried chicken as her weaknesses -- said she's been noshing on apples, cherries and salads to slim down. After famously undergoing 10 cosmetic surgeries in late 2009, Montag added that decided to take a year off from the gym.
"My breasts, because they're so big, really needed some time," she explained. "So I'm just starting to work out again after my surgery. Sometimes I get shooting pains, but I hear that's normal."
RELATED ON WONDERWALL:
RELATED ON USMAGAZINE.COM:
Fergie, Sarah Jessica Parker, and Heidi Klum all get an F on this week's Fashion Offenders.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Where Are They?
See what the cast of "American Beauty" is up to today.Watch Video »
J.Lo's Mini Me
Jennifer Lopez shares an adorable photo of her look-alike daughter, plus more celebritots on social media on today's Celebs Gone Social.Watch Video »
Prince Harry, Jessica Alba and more stars who threw out the first pitch at baseball games.Watch Video »
Sofia Vergara poses in a revealing neon bikini while her "Modern Family" castmates hit the beach in Australia on Celebs Gone Social.Watch Video »