Celebrity diet tips

"It's simple math: You put this much food in, you burn that much working out. I gave myself three months."
Pop star Gwen Stefani on how she lost weight after the birth of her son, Kingston.

"I thought, Okay, I'll drink vodka instead of wine because it has less calories."
Actress Sienna Miller on slimming down to play Edie Sedgwick in Factory Girl.

"Stop eating cheese and start eating kale. I eat way too much cheese. Kale is good for you, and delicious with a little garlic."
Actress Jessica Biel's New Year's diet resolution.

"I don't really eat food in restaurants. You can never be sure what's in it, can you?"
Madonna, who follows a strict macrobiotic diet.

"When I'm not working, I try very hard to let my hair down and have a glass of wine or two, and cook yummy meals for my family and friends. Yes, I've been on lots of diets, but I don't kill myself. My fave treat is a Reese's Peanut Butter Cup that's nice and cold in the fridge. That makes me so happy!"
Actress and former model Liv Tyler on relaxing her diet rules after the birth of her son, Milo.

"I got on the treadmill, stopped stuffing my face and lost the weight. I cut out croissants, bagels and muffins - all the good stuff. And I went back to having a salad once a day and protein."
Actress Jennifer Garner on how she lost weight after her daughter, Violet, was born.

"I am normal. I have 'fat days,' and I'm never going to be 5"11' and 120 pounds. I'm not really the type of girl who goes jogging at 6 a.m., but I eat well and I walk a lot."
Actress Scarlett Johansson on not giving in to Hollywood pressure to be super thin.

"I'm addicted to sushi, and I always ask the chef to make rolls with half the rice."
Actress Eva Mendes.

"I try to eat as organically as possible. I don't eat candy because I don't think there's any energy in it."
Actress Gwyneth Paltrow.

"I've learned not to eat a huge portion just because it's on my plate."
Academy Award-winning actress and former beauty queen Halle Berry.

"When I'm in the bake shop, I eat critically and analytically. I'll take one bite and throw it away. But when my husband and I started eating oatmeal for breakfast every morning, 10 pounds just dropped off."
Anna Olson, host of the Food Network's Sugar and co-owner of Olson Foods + Bakery in Port Dalhousie, Ont.

"Going seven hours without food isn't the way to maintain your weight or your energy levels."
Supermodel Cindy Crawford on why she eats small meals all day to keep her blood-sugar levels stable.

"No bread. No butter. No wine. Eat half of whatever is placed in front of me except for dessert. Eat one bite of dessert. When I was observant, I did not gain weight. When I bent my rules, my waistband tightened, particularly during the pasta years."
New York Times food writer and restaurant critic Molly O'Neill on how she stayed slim while eating out 12 times a week.