Fit Over 40!

There's no expiration date on looking hot! US shares the diet and exercise secrets that have helped Jennifer Lopez and Jennie Garth get those enviable bods

Jennifer Lopez

The mother of two -- 4-year old twins Max and Emme -- showed off her traffic-stopping physique at the SLS hotel pool in Miami September 1. Dedicated dieter Lopez, whose summer tour demanded 90-minute shows each week, got road ready with a 10-day cleanse from nutritionist Haylie Pomroy ($196, eastwestessentials.com). The carb-lover also cut out wheat, dairy and soy. Abtastic Lunges and squats aren't the singer's only ammo, "It's the dancing!" says the 5-foot-6 fan of Tracy Anderson's dance workouts. "I've toned up performing."

Jennie Garth

After losing 20 pounds following her March split from hubby Peter Facinelli, the actress shaved an additional inch off her waist (she's a 25!) in just three weeks. She flaunted her new string bikini -- worth body September 1 at Las Vegas' Azure at Palazzo. The skinny The 5-foot-5 Garth says she's eating less: "Greek yogurt in the morning, salads and proteins the rest of the day, and maybe a cupcake." Sweat therapy Shannon Stewart trains Garth at thrice-weekly 90-minute circuit sessions -- and daughters Luca, 15, Lola, 9, and Fiona, 5, box with her!