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Laila ALI, 35

About 80--90 oz. of water a day

BREAKFAST

Omelette made of 2 egg whites and 1 whole egg with 4 oz. of sautéed shrimp and spinach and ¼ cup of mozzarella cheese

DAILY POST-WORKOUT SHAKE

1 scoop of One World Whey Protein• 1 cup organic unsweetened almond milk • 2 scoops Body Ecology Vitality SuperGreen powder • 1 tsp. pure coconut oil • Ice

LUNCH

Homemade chicken and white bean soup with a green salad and 2 tbsp. Trader Joe's Light Champagne Vinaigrette

SNACK

½ Think Thin Creamy Peanut Butter bar

DINNER

6-oz. salmon filet with ½ yam and sautéed brussels sprouts

*Total Calories: 1,333

THE VERDICT

"Laila has a very clean diet," says nutritionist and author of The Fast Metabolism Diet Haylie Pomroy of the 5'11" athlete. "I am so impressed she adds the healthy fat of a whole egg to her breakfast and coconut oil to her smoothie."

BRANDI GLANVILLE, 40

BREAKFAST

8-oz. coffee with fat-free creamer

LUNCH

2 tacos and 2 small red burritos from Del Taco with extra cheese and light sauce on the beans

SNACK

½ cup sunflower seeds at baseball practice

DINNER

2 pieces BBQ chicken with a scoop of coleslaw and a plain biscuit

SNACK

one glass of rosé wine before bed

Total Calories: 2,620

THE VERDICT

There's no such thing as a typical day for the 5'11" Real Housewife: "I just eat when I'm hungry." Still, "I wish her calories were more nutrient-packed," says Pomroy. "Vitamin C-rich fruits like oranges are easy to keep in the car."

Katherine WEBB, 24

BREAKFAST

8-oz. homemade smoothie with strawberries, banana, protein powder, almond milk, 1 packet Truvia sweetener

SNACK

Green apple

LUNCH

Water with lemon • Spinach salad with almond pieces, straw- berries, tangerines and fat- free balsamic vinaigrette dressing

SNACK

Weight Watchers Strawberry Smoothie frozen yogurt bar

DINNER

Water with lemon • Grilled chicken fingers with fat-free honey mustard and sweet potato fries

Total Calories: 1,120

THE VERDICT

"Katherine does an amazing job of eating three meals and two snacks, fueling her metabolism," says Pomroy of the 5'11" former Miss Alabama. But with thrice weekly workouts, "she could add at least 600 more healthy calories."

Erin HEATHERTON, 24

At least 2 liters of water throughout the day

BREAKFAST

Omelette made of 3 egg whites with spinach, tomato, onion and half an avocado and salt • 1 black espresso • Horny Gorilla juice from Juice Press

SNACK

1 handful of walnuts and goji berries • Gravity Juice from Juice Press

LUNCH

Angel Pasta from Juice Press • Green tea

SNACK

Coconut Water from Juice Press

DINNER

Arugula salad with grilled chicken, olive oil and lemon dressing

DESSERT

Handful mixed berries and quarter fresh pineapple

Total Calories: 1,360

THE VERDICT

The N.Y-based Juice Press supplements what Pomroy calls a diet "packed with antioxidant-rich fruits and veggies." But on the days she exercises, the 5'10" model could add more fruit before the workout and a protein-based snack after.

*All daily calorie counts are estimated

  • Contributors:
  • with Liza Hamm,
  • Raha Lewis,
  • Aili Nahas.