Drive-Thru Diet

Can you really lose weight by eating fast food? Christine Doughtery did.

"I lost 54 pounds," said Doughtery, who is the new face of Taco Bell.

The fast food chain spokesperson claims to have lost 54 pounds in two years while eating at the Taco Bell drive-thru five to eight times per week! "I didn't have to give up eating fast food. I just was able to make better choices."

Those choices came from what Taco Bell calls their Drive-Thru Diet Menu.

Each taco and burrito has between 150 and 340 calories and four to eight grams of fat.

But if you read the fine print in Taco Bell's ad, it says this is not a low calorie food.

Registered dietician Megan Murphy is pleased that fast food restaurants are giving customers more options.

But she's concerned they'll misinterpret Christine's weight loss story. "They don't give us nearly enough information as far as promoting it as a complete lifestyle change."

You have to look closely to see that Christine cut her overall food intake to 1,250 calories a day. "As a dietician, I know that for people to achieve weight loss, they need to lower their total calorie intake and exercise regularly."

And Taco Bell's concept isn't unique.

At McDonalds you could order a Grilled Chicken Ranch Snack Wrap and a side salad with low fat vinaigrette for a total of 330 calories and 14 grams of fat.

Chick Filet's Char-Grilled chicken sandwich and a side salad with light Italian adds up to 385 calories and 8.5 grams of fat.

At almost any fast food restaurant, you can find reasonable choices. "These results aren't typical, but, for me, they're fantastic," said Christine.

Taco Bell says they aren't selling a diet just a menu of better choices. Even though, their Web site is DriveThruDiet.com.