Studies: Diet soda may not be helping you keep weight down

A team from the School of Medicine at the University of Texas Health Science Center tracked 474 people, ranging in age from 65 to 74, for nearly a decade and found that the waistlines of diet soda drinkers expanded 70 percent more than those who avoided the fizzy favorites. The waists of those who drank more than two diet sodas a day expanded by a belt-busting 4.7 centimeters, that report says.