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25. Courteney Cox, Actress
At 47, Courteney has never looked better. Her secret? Interval training, which fires up her metabolism and burns more fat. Courteney's trainer, Michelle Lovitt, varies her cardio between the elliptical and treadmill. Michelle also keeps Courteney's body guessing with resistance-band and power-plate strength training. If you've reached a workout plateau, give this interval training routine a try. It combines fat-burning cardio with moves that target your entire core rather than individual muscles, so you'll burn more fat while toning up. Find out how you could lose up to 2 pounds in one day! Order The 17-Day Diet today!
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24. Olivia Munn, Actress/Model
Running is the one exercise Olivia will not do anymore. At 31, she prefers surfing, hiking, and Pilates. Her healthy-eating guideline is simple: If she can't see it, she won't eat it, so she keeps unhealthy foods at bay. Still looking for the diet trick that will work for you? Quit playing head games and get real with these tips.
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23. Nicole Scherzinger, Musician/Actress
Nicole's trainer, Adam Ernster, focuses on building muscle. Nicole gets those killer abs by using a stability ball to do crunches, which makes them more challenging. To tone her legs, she runs, dances, and does plenty of squats and lunges. By avoiding carbs, dairy, salt, and late-night munching, Nicole is able to keep her physique tight. Controlling your sodium intake is more complicated than just putting down the saltshaker. You may be surprised by some of the saltiest foods out there. Keep your diet on track with The New! Abs Diet Cookbook. Get your copy today!
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22. Halle Berry, Actress
Trainer Harley Pasternak has worked with 45-year-old Halle—putting her through his 5-Factor plan, a fast-paced strength-training and cardio circuit that takes only 25 minutes! One of the actress's favorite workouts, kickboxing, tones her arms without adding too much bulk. Women's boxing will make its debut at the 2012 Olympics in London, marking the first time that all summer sports will have female athletes. Go for the gold with this do-anywhere boxing workout!
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21. Jennifer Lopez, Musician/Actress
Celebrity trainer Gunnar Peterson guides 42-year-old J.Lo through lower-body exercises like weighted sumo squats, single-leg squats, and reverse lunges to front kicks to keep her butt and legs looking fabulous. To really make her toned lower half stand out, she exfoliates and applies tanner to her legs. Make your legs shine with this contouring trick: Dust a pale-pink shimmer powder down your shins in a straight line. It will draw eyes vertically and make your legs look longer. Want to look better in your two-piece? Pick up a copy of Look Better Naked! You'll get six weeks of eating plans, workouts, confidence-boosting advice, and more!
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20. Vanessa Hudgens, Actress
Post-workout pics of this 23-year-old actress regularly circulate celeb websites. Each photo captures her healthy exercise glow along with some awesome workout clothes. Hey, sometimes the perfect gym outfit can be all the workout motivation you need! Improve your fitness fashion with these stylish workout clothes.
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19. Cameron Diaz, Actress
When she's not surfing (one of her passions), the 39-year-old SoCal native sculpts her long legs and tightens her tummy by joining trainer Teddy Bass in the gym—three or four days a week, 60 minutes a session—for either Pilates, cardio, weight training, or a mix of all three! And although this girl loves food, she has no problem cutting out white sugar and alcohol to slim down before big events.
Get jaw-dropping results with this Pilates workout! It combines the body-sculpting benefits of Pilates with fat-melting cardio training. Take control of your appetite! The Belly Melt Diet is designed to keep hunger hormones in control. Buy the book!
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18. Maria Menounos, Television Host
Maria—in spite of two cracked ribs and injured feet—is in awesome shape thanks to her participation on Dancing with the Stars. That's not to say she didn't have a killer body before her DWTS debut! Maria's used to getting creative with at-home (or at-hotel) workouts and trains with Andrea Orbeck on a regular basis. Maria's biggest exercise motivator? Music. Need some new tunes on your workout playlist? Check out our playlist library!
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17. Rihanna, Musician
The 24-year-old Barbados native exudes confidence when she's walking those white-sand beaches in a tiny bikini, but it's not without hard work. When she's on the road, the singer does her best to squeeze in at least three workouts a week, at least 25 minutes a day. Biking or cycling are also part of her regular cardio routine, as well as exercises like jumping rope without a rope, stationary jogging, and jumping jacks. She's also worked with celebrity trainer Harley Pasternak on her diet—incorporating five well-balanced meals a day that are packed with protein, fiber, healthy carbs and fats, and a sugar-free beverage. Get your meals in check with Women's Health's Flat Belly Day meal plan! What's the 15-Minute Fat Loss Secret? Find out here!
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16. Gwyneth Paltrow, Actress
The 39-year-old actress–turned–country singer is a healthy-eating superstar. Through her blog, Goop, she reveals what helps her stay in amazing shape: a balance between healthy eating and exercise. Gwyneth's cardio of choice is dancing, and she uses resistance bands and lightweight dumbbells for toning. Training with Tracy Anderson whenever she can, Gwyneth loves a good sweat. For fun recipe ideas, check out Gwyneth's cookbook, My Father's Daughter.
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15. Jessica Alba, Actress
This 31-year-old Golden Globe–nominated actress and mom refers to herself as an amateur chef. In fact, some of Jessica's recipes have been featured on sites such as Epicurious.com. By cooking at home, Jessica knows exactly what goes into her food: nothing artificial. Jessica's all-natural lifestyle doesn't stop in the kitchen. She's actively involved with charities such as Safer Chemicals, Healthy Families, ONE, Habitat for Humanity, and Project H.O.M.E., and she even founded The Honest Company, which creates unquestionably safe and eco-friendly baby products. Green your home with this eco-friendly home decor. Get ready for bikini season! Buy Tone Every Inch: The Fastest Way to Sculpt Your Belly, Butt, & Thighs!
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14. Diane Kruger, Actress
The 35-year-old former ballet dancer isn't a fan of the gym. Her hiking and camping hobbies keep her svelte, while her love of cooking has made it easy to keep a clean diet. When this actress feels as if she's gained weight, she simply watches her portions. Break the clean-plate habit with some simple tricks—and lose inches instantly.
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13. Bar Refaeli, Actress/Model
The 26-year-old Sports Illustrated swimsuit model has a kick-butt workout—literally. The Israeli supermodel's trainer takes her through different martial-arts-style kicking sequences that work the abs, butt, and legs. Kickboxing is a calorie-blasting powerhouse workout for the whole body. Try this do-anywhere boxing routine with high-intensity moves that sculpt muscles. Want to feel good fast? Check out Dr. Oz's book You Being Beautiful!
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12. Leighton Meester, Actress
Justin Falahi, Leighton's personal trainer, takes her workouts outdoors. Strength-training moves on park benches and playground workouts make for a fun outdoor sweatfest. Before each workout, Leighton takes five minutes to meditate and de-stress, a perfect me-time moment. Relaxing is all about getting your mind off the stresses of life. Meditating can help you attain a sense of calm and peacefulness.
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11. Kristen Bell, Actress
At 31 years old, this hilarious actress attributes her killer figure to always taking the stairs. Yoga and strength training twice a week give her sexy muscle definition. As for food, Kristen finds counting calories useful and even comforting because it helps her know she's staying on track. Need assistance with your calorie-counting math? Follow WH's formula and reach your goal! Send your metabolism sky-high and drop 15 pounds in six weeks with The Women's Health Diet book!
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10. Kate Hudson, Actress
When Kate's not running after her two sons, Ryder and Bingham, she catches a Pilates session or dance class. She's also a fan of Core Fusion, a mix of yoga, Pilates, ballet, and strength training. As for diet, Kate's trainer Ashley Conrad recommends eating five times a day—making sure to include lots of lean protein. Not sure which proteins are the best? We sort it all out for you with this protein prescription plan.
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9. Gwen Stefani, Musician and Fashion Designer
Gwen's weightlifting, boxing, and cardio workouts continue to pay off. The 42-year-old musician and mom is always active. Whether she's skiing, power walking, or chasing her kids, Gwen is rarely sitting down. Whenever possible, Gwen chooses organic, grass-fed, and local food to keep herself—and her family—healthy. Is organic food better and worth the extra green? We dig in and find out. Get a flat stomach with The Women's Health Big Book of Abs. Order now!
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8. Olivia Wilde, Actress
The 28-year-old likes to hike with her dogs, a bulldog named Lola that she lovingly refers to as "a side of ham" and a fluffy mutt that goes by the name of Paco. Although Olivia tries to avoid eating bread and pasta, her love of Italian food makes that difficult. Portion control is key for this toned actress. Don't be afraid of carbs. Whole grains are nutritional all-stars. Eating them can help reduce the risk for heart disease and diabetes and may even help you lose weight. Just be wary of these bad carbs.
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7. Rachel Bilson, Actress
Those curves aren't from trips to the gym. This 30-year-old's favorite form of exercise is dancing "or some sort of sport," she says. Rachel reinvested in tennis equipment (she played as a kid) so she and friends could hit the courts in L.A.'s Griffith Park, which is also a great place to hike. On days when she doesn't feel like leaving the house, she pops in a yoga DVD. For a relaxing—and challenging—workout, give these yoga moves a try. Take control of your appetite! The Belly Melt Diet is designed to keep hunger hormones in control. Buy the book!
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6. Selena Gomez, Actress/Musician
You would never guess that this multitalented 19-year-old struggled with a junk-food problem. But that is reportedly what landed Selena in the hospital last year. Fast-forward one year and she says she's eating healthier and feeling better! Simple changes like adding more lean protein and vegetables can make all the difference. If you need to make over your diet, pick up a copy of The Women's Health Diet book!