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

Washington: 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.