From PEOPLE Magazine Click to enlarge
What They Consume in a Day

Khloé Kardashian Odom

Breakfast

1 cup of homemade Starbucks brewed coffee with 2 packets of Truvia and all-natural Coffee-mate (Natural Bliss Vanilla) • Bowl of Kashi GOLEAN cereal with 2% milk

Beverage Break

Starbucks Venti unsweetened iced green tea • 20-oz. Smart Water with lemon juice

Snack

One QuickTrim fast shake (she's a spokesperson)

Lunch

A large spinach salad with pears, pecans and light feta cheese; no dressing • Smart Water with lemon juice

Snack

2 Cuties California Clementines • 1 piece of string cheese

Snack

Strawberry Activia yogurt • Smart Water with lemon juice

Dinner

Grilled chicken and vegetable kabobs • Steamed broccoli • Hummus with half a pita

Snack

A handful of dried mangos

TOTAL CALORIES: 1,487

THE VERDICT

"This diet is okay for a short-term weight-loss plan," says dietitian Ilyse Schapiro, who praises Kardashian Odom for eating throughout the day. However, to maintain a healthy weight (the average 5'10" woman is 150 lbs.), "she could add 500 more calories."

Stacy Keibler

Breakfast

Hot water with lemon • Organic fruit-and-vegetable smoothie

• 16.9-oz. bottles of Qure alkaline water at 9:30, 10:30 and 11 a.m.

Lunch

Turkey wrap (organic Ezekiel 4:9 sprouted grain tortilla, 1 tsp. High Omega Vegan Ranch dressing, 3 slices Applegate Farms organic herb turkey, organic heirloom tomato, organic butter lettuce and chili sauce) • Bottle of Qure water

Snack

Handful of wild berry sprouted trail mix • Bottle of Qure water

Snack

5 Go Raw organic lemon Super Cookies • Bottle of Qure water

Snack

10 almonds sprayed with Bragg Aminos (liquid protein concentrate) • Bottle of Qure water

Dinner

Grilled marinated organic chicken breast • Organic corn on the cob • Organic asparagus • Glass of pinot noir

Snack

Chia-seed pudding (chia seeds, maca, banana, agave, almond milk) • Bottle of Qure water

TOTAL CALORIES: 1,260

THE VERDICT

Schapiro praises the 5'11" Keibler's all-organic, nutrient-rich meals-she just advises eating more of them: "The content of her diet is healthy, clean and well-rounded," says the dietitian. "But she could eat 800 more calories each day and still not gain weight."

Maria Menounos

Breakfast

Large thermos of hot water (refilled throughout the day) • Greek yogurt • Small container of blueberries

Coffee Break

Medium Dunkin' Donuts coffee with milk and sugar

Snack

One small packet of Mrs. May's Almond Crunch

Lunch

A Mediterranean salad with olives, chicken and feta cheese

Dinner

The Fresh Diet

Vegetarian chicken teriyaki • Steamed snap peas • Multicolored cauliflower

TOTAL CALORIES: 1,007

THE VERDICT

While Schapiro hails Menounos's hot-water routine-it's great for digestion and glowing skin-the 5'8" star "could even afford to eat up to several hundred more calories in the form of lean protein and whole grains," she says. "This would help her maintain an active lifestyle."

How They Cheat

Khloe, 27: "My mom has a frozen-yogurt machine at her house. I will have some, but I'm just going to have a much smaller portion than everyone else. That way I don't binge out later and have a whole bag of cookies."

Stacy, 32: "When I was in Mexico, this amazing chef made a tequila ice cream, so I had two spoonfuls, just to try it. I definitely did a few extra minutes of cardio the next morning."

Maria, 34: "I went to Shake Shack recently and ate a cheeseburger, french fries and a peanut butter shake."

STARS' DIET SECRETS

Heidi Klum enjoys a Big Mac-but only once a month.

Erin Heatherton indulges in"just a little piece" of dark chocolate.

Gabrielle Union "skips booze to have the Cheddar Bay Biscuit" at Red Lobster.

Madonna treats herself to tomato and cheese pizza post-performance.

Alec Baldwin gave up sugar.

Maggie Q always has a salad with her fries: "It balances out my guilt."

Cameron Diaz stopped eating fried food.

Bethenny Frankel orders appetizers or sides instead of an entrée. "You can indulge more because it's smaller portions."

Scarlett Johansson went from a Paleo diet (eating only foods that would have been available to a caveman) to a raw, vegan one to fit into her Avengers catsuit.

Rihanna traded white rice for brown rice..

Paula Patton banishes the bread basket.

CELEB FOOD CONFESSIONS

"I CAN EAT THE ENTIRE BAG OF PEPPERIDGE FARM GOLDFISH. YOU'RE SUPPOSED TO HAVE THAT BAG IN YOUR HOUSE FOR A WEEK, BUT I'VE NEVER DONE THAT."

-GRETA GERWIG

"I was doing this fiber-powder craze where you sprinkle the powder over whatever you're eating, and it's your source of fiber for the day. I stopped using it in public because the bag broke in my purse, and it looked like baby powder exploded. I still do it at home though. It does the job."

-Karina Smirnoff

"I motivate myself to work out by promising myself a glass of wine as a reward."

-Valerie Bertinelli

"I CANNOT BE IN THE VICINITY OF COOL RANCH DORITOS WITHOUT EATING THE ENTIRE BAG. THE LAST TIME I BROKE DOWN AND BOUGHT THEM, I HAD TO THROW THEM AWAY TO STOP. I HAD TO COMPLETELY DUMP THE BAG OUT AND MAKE SURE THERE WAS TRASH ON TOP."

-KATIE LEE

TO HAMPTONS MAGAZINE

"I know someone who had an ice-cream sundae once a month for their treat day, but on Sunday morning! Another person used to eat nachos every other Friday as a treat."

-celebrity trainer Gunnar Peterson

"I tend to have one really big meal where I eat pretty much whatever I want and then pick the rest of the time."

-Kathy Griffin

"I have not had carbs in months. When we wrapped The Client List, I had a glass of champagne, half a pizza and even shared my friend's pasta. The next five days after that, I really pulled it back."

-Jennifer Love Hewitt

"MY HAIRDRESSER BROUGHT ME TWO KIT KATS, AND I WAS LIKE, 'ARE YOU CRAZY? ARE YOU TRYING TO SABOTAGE ME?' SO I CRUMBLED THEM UP AND THREW THEM IN THE TRASH CAN."

-LA LA ANTHONY

TIPS & TRICKS

Food Experts Weigh In

"Turn the lights off in the kitchen after 6 p.m.!"

-Kendra Wilkinson

"Put lime, vanilla extract and stevia into Greek yogurt: It tastes like key lime pie!"

-chef Ingrid Hoffmann

"Studies show that when people added red pepper to their food, they ate fewer calories during that meal-and the next one."

-nutritionist Patricia Bannan

"I made a kale, spinach, celery, tomato, beet, green apple and ginger juice for Blake Lively and Ryan Reynolds every day on the set of Green Lantern. It will give you energy, vitamins and curb your appetite."

-trainer Bobby Strom

Slimming Style Secrets

"People stay away from clothes that show their bodies. But a tight dress, pencil skirt or skinny jeans can actually help hold in whatever problem areas you might have."

-stylist Brad Goreski

"Buy bikini tops and bottoms in different sizes. If you have a top that fits but the bottom doesn't, that's a bikini mistake."

-author Kelly Bensimon

"When swimsuit shopping, if you have a small bust, get a cute little bandeau and show off that booty; elongate short legs with a higher hip; if your midsection isn't great, look for a one-piece with a pattern."

-model Selita Ebanks

ADVICE FROM CELEB DIET DOCTOR STEPHEN GULLO

A Bloody Mary is more filling than white wine!

"My clients use a gum called Sugar Blocker that knocks out the sweet receptors on the tongue.

You chew two pieces for 10 minutes and alcohol, cookies and cakes take on a horrible taste."

"I don't meet many people who can eat just 10 nuts.

It's probably the single biggest trigger food that people get into trouble with."

SHOP SUMMER'S HOTTEST LOOKS AT PEOPLE.COM/HOTTESTBODIES

BEACH AFTER BABY: HOW THEY DID IT!

8 Months After

Kate Hudson

The mom of two, 33, loves "naughty food." But after son Bingham arrived last July, she counted calories, sticking to a diet heavy on greens and sushi.

11 Months After

Pink

The superfit singer, 32, was doing Bikini Boot Camp within a year of welcoming Willow, 1. "I am sore!" she tweeted in May. "I feel like a champion."

3 Months After

Beyonce

After Blue Ivy's January arrival, the star, 30, stuck to "simple, boring" meals like fish and egg whites: "No wine, no soda, no cheat day," she says.

4 Months After

Jessica Alba

While nursing her second daughter, Haven, 10 months, helped "shrink my tummy," the actress, 31, also eased into core-focused workouts with a trainer.