Transcript for Dieters Enjoy Favorite Foods, Still Lose Weight
Can be famous quote that you -- She was seen and we -- enough skinny women. It turns out French women eat differently than we do. Very important right now exceeds effects of friends. It's sad but true... See More
Can be famous quote that you -- She was seen and we -- enough skinny women. It turns out French women eat differently than we do. Very important right now exceeds effects of friends. It's sad but true French obesity rates are about three times lower than ours. And this new -- the Parisian diet reveals all French secrets. 49 year old Rachel -- high is an American eating like a Frenchman. She's been on the Parisian diet for five weeks but this is an American -- apple would let its friends thanks. And she's already lost eleven pounds and everything that's better everything looks -- You know which is really important to me. Mastermind behind the diet is doctor -- Michelle Collins he's a famous talk show host and friends. He took me to his favored French restaurant in New York. -- see those front of you so doctor Cohen it seems to me is that the secrets to the -- diet is to enjoy your food -- -- people. The enjoy it every buying -- -- you know. His first -- smaller portions mean fewer calories and nothing is forbidden even -- -- this is an American serving. And this is the Parisian fans and -- -- this is about a third the size dipped to savor your food and avoid mindless eating. Too often -- wolf down lunch at my desk instead of fully enjoying a meal and its coldest time and good. Doctor -- says this is a classic American mistake. Third tip never deprive yourself this seems like diet sacrilege but you actually think a big Mac is okay for -- -- Yup he says the -- is okay but with a salad and no notice and certainly not every day and many nutritionists we talked to agreed. Just -- the -- down. Even -- deference. For Good Morning America I'm juju Chang --
This transcript has been automatically generated and may not be 100% accurate.