diet soda and calorie count

[norfolksouthern]

Does diet pop really contain zero calories like it says or will it just pack on the pounds?

[karl]

according to the can Coca-cola Zero contains 1kJ 0.2kcal per 100 ml

[CaptainObvious]

Yes, it really contains 0 calories. Some artificial sweeteners are reported to somewhat increase appetite and slow metabolism (though I have no idea how they separated that effect from the effect that is merely due to the lack of energy in the sweetener), but the drinks contain 0 calories so assuming you eat the same diet other than that, switching to a diet from a regular pop should reduce your energy intake.