By Claire Connors
December 19, 2011

You know those super-svelte celebs who are always bragging, "I just eat what I want...and I never work out"? Well, Molly Sims, model-turned-TV-host-and-jewelry-designer, is definitely not one of them.

"This does not come naturally," says the Southern-born belle of her cover-worthy physique. "I have to work out 60 to 90 minutes at least five days a week and stick to a high- fiber, low-calorie eating plan." But healthy diligence didn't come naturally to Molly either. Until a couple of years ago, her fitness routine was hit or miss, and her diet philosophy was "Less is more." Fed up with constant weight fluctuations, Molly, 38, made a resolution that changed her life. "I wanted to be consistent with my exercise, so I committed to working out for 30 days in a row, no matter what," she says. "For an hour every day, I did something. I was on the elliptical or the treadmill, and if someone asked me to go to a class-whether it was spinning, boxing, yoga, you name it-I went. By the end of the month, I felt so good, I just kept going. I didn't want to lose my momentum."

That 30-day immersion plan is just one of Molly's many effective strategies. Try one-or all of them-today, and start living well, looking good, and feeling great!

Bribe Yourself


What's the biggest get-fit obstacle? hands down, for most people it's getting (and staying) motivated, says Molly. So she's created an admittedly mercenary-but foolproof- plan to stay on track.

She sets a weekly goal like, "I'm going to get up every morning at 6:30 to work out," says Molly. "Then, when I've kept with it all week, I give myself something I really want, like a new handbag or a piece of jewelry I'm coveting."

Banish the Bread


It's inevitable: You sit down in a restaurant and you're faced with a basket full of yummy carbs. Molly's solution? ordering a salad ASAP! "I don't care if I'm being rude to the rest of the table," she says. "I just do it. Then I'm not tempted to reach for that bread."

Make Healthy Swaps


Try these six healthy swaps that Molly swears by: Instead of pasta, try spaghetti squash.

Try swapping diet soda for S. Pellegrino with a splash of grapefruit or cranberry juice

When you're craving something sweet, instead of reaching for that brownie, why not try a low-cal hot chocolate?

Love ice cream sundaes? Try frozen yogurt with chopped calcium chews.

If you can't get enough bread, try GG Crispbread instead.

Drop 5 Fast- No Fad Diet Required


Two weeks before her wedding to film producer Scott Stuber last September, Molly realized she needed to drop about 5 pounds-but she wanted to do it the right way. First, she nixed all salt and almost all oils, even from foods with "good" fats like avocados, and lowered her carb intake. "Then, a week before the event, I also cut out alcohol and soy sauce, and I increased my water intake," says Molly. "on the big day, my dress fit perfectly and I felt fantastic."

Brush Up


Molly's secret recipe for glowing skin: dry skin brushing. "Don't hate me for suggesting this, because it can hurt a bit at first," she says, "but before I get in the shower, I use a loofah or brush to exfoliate. There's nothing better for getting your circulation going and helping with cellulite."

Pump Up with Your Partner


"My mom was on my daddy to exercise all the time," says Molly. "She was like, ‘Listen buddy, if I'm doing this, you're doing it too.' and I agree!" Molly says she and Scott had one of their biggest arguments when he felt too busy to exercise. "I was so upset, but he needs to stay active!" These days, the couple coordinates sessions together, which helps them both stay motivated.

Go Back to the Basics


Molly has always loved to cook, but she wanted to sharpen her culinary skills after she got married. So she and a few girlfriends hired a professional chef to give them some lessons. "Now I can make a proper tomato sauce and turkey meatballs served over spaghetti squash, butternut squash soup, and roasted broccoli and brussels sprouts," says Molly. "It was such a fun experience-and we learned how to make a lot of simple, healthy recipes that are great for any occasion."

Be Classically Chic


always have a few pieces in your wardrobe that never go out of style, Molly advises, then add flair to any outfit with-surprise!-some well- chosen accessories. "My staples are a beautiful pair of black pants, a lightweight coat, a great black heel, and a black cardigan. everything else is just a topping on my fashion sundae."

For a timeless look, she'll add a string of pearls. "I could also go boho with tons of different beads and crystals," says Molly, "or opt for a rock 'n' roll vibe with mixed metals."

Stay in Tune


Never stop listening to your body, says Molly, because your response to certain foods can change over time. "Ask yourself, how do you feel after you eat that? If you're going to the bathroom every time you have pasta, you might have an intolerance for wheat-which could explain, for instance, why you're gaining weight."

Sweat it Out


No time for a full-on workout session? Even just 15 minutes of activity will do you good. "Whether it's time on the treadmill or an upper- body routine," says Molly, "You just have to get that heart rate up and keep it there." For some extra sweat equity, Molly turns up the heat in her exercise room.