Heidi Montag 'worked out 14 hours a day for 2 months to get back in shape'

Washington, June 20 : Heidi Montag has revealed the secret behind regaining her slim shape after gaining weight.

Montag said the slim shape was all due to 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," Us mag quoted her as saying.

"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," she added.

At her heaviest, the 5''2" reality star claimed she weighed 130 pounds; she''s currently back down to 103.

"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]," she added. (ANI -Posted on / )