Foods you think are healthy BUT AREN'T! #18: DIET SODA

WHY WE THINK IT’S HEALTHY: It has no calories and allows dieters to enjoy their soft drinks guilt-free. The classic way to lose weight has been to eat fewer calories than you burn, so drinking low-calorie pop should, in theory, help you shed those unwanted pounds more easily. WHY IT’S NOT: The principle of “a calorie…