Body After Baby

By Alexis Chiu, Liza Hamm, with Jennifer Garcia, Monica Rizzo, Michelle Ward, Jessica Wedemeyer

UPDATED 03/28/2011 at 01:00 AM EDT • Originally published 03/28/2011 at 01:00 AM EDT

2 Months After!

ALI LARTER

After she had her first son, Teddy, the [Obsessed] star-who packed on 45 lbs. during her pregnancy-"took some time off from working out," says a pal. But Larter, 35, has started slimming down thanks to a regimen of Pilates, hiking and running.

Less than a Year After!

ISLA FISHER

"I used to say I could eat anything," says the Rango star, 35, who fessed up to a weakness for ice cream while pregnant. But after welcoming baby No. 2 last summer, she says, "Now I can tell you: I can't eat whatever I want!"

1 Year Later!

PADMA LAKSHMI

After baby Krishna was born last February, the Top Chef host, 40, returned to the gym twice a week for weight-training and mixed up her cardio routines. "She boxes, runs stairs, skips rope," says a friend. "She feels great!"

3 Months After!

JODIE SWEETIN

After giving birth to her second daughter, Beatrix, in August, the Full House star lost her baby weight with Pilates and sheer willpower. "I try and not eat as many chocolate chip cookies as I want!" she says.

3 Weeks After!

SAMANTHA HARRIS

How did Entertainment Tonight's Harris, 37, get her pre-baby body back so quickly after daughter Hillary Madison's arrival in January? Her favorite "addictions": yoga and strength-training classes. Her biggest challenge: "My abs," she says. "There aren't any!"

2 Months After!

MIRANDA KERR

The yoga fanatic, 27, ate sensibly-fish and salad!-during her pregnancy. No doubt that helped the model get back into runway shape for Paris fashion week just two months after welcoming her son Flynn with husband Orlando Bloom.