Why? Nutrition expert Leslie Bonci, MPH, RD, puts it surrounded by a nutshell.

"You enjoy to look at what's on your plate, not merely what's contained by your chalice," Bonci tell WebMD. People repeatedly mistake diet drinks for diets, say Bonci, director of sports nutrition at the University of Pittsburgh Medical Center and nutrition consultant to college and professional sports team and to the Pittsburgh Ballet. "A lot of culture voice, 'I am drinking a diet soft drink because that is to say better for me. But soft drinks by themselves are not the root of America's flabbiness problem," she say. "You can't progress into a fast-food restaurant and vote, 'Oh, it's OK because I have diet soda.' If you don't do anything else but switch to a diet soft drink, you are not going to lose mass." The Mad Hatter Theory "Take some more tea," the March Hare said to Alice, especially earnestly. "I've have zilch but," Alice replied surrounded by an affronted tone, "so I can't cart more.  more