Drinking diet sodas makes people eat more.

A new study says diet soft drinks aren't a good way to lose weight because overweight and obese people who drink them consume more calories from food than those who drink sugary sodas.

Researchers at Johns Hopkins found about one in five overweight American adults are opting for diet sodas, but they're not making other changes in their diets and often wind up eating more.

They say it's because the body naturally tries to maintain its current weight, and that's why its hard to drop those extra pounds in the first place.

--Rob Archer