Why do many people think diet soda is worse or just as bad as regular soda?

umm i dont know where u get ur info but you are wrong... artificial sweeteners pretty much have the same affect on ur body as regular sugar which is raising ur insulin levels to the point where u cant burn fat... so when u get a big mac with a diet coke it dont make a difference than getting a regular coke its just less calories... but who cares about 100 less calories when the carcinogenic ingredients in artificial sweeteners are cancer causing... so ur wrong my friend diet soda IS worse than regular soda, but none should be consumed for weight loss purposes.