Just look at the back packet?
260 kilocalories in 58 gram bar.
20 minutes is around about 1 mars bar
bout 400 innit.
they have calories in them
260 calories in a Mars Bar
doing it for an hour burns off a mars bar so if you find out how many an average size mars bar has you shall know (:
It depends on the type of sport
There are 203 calories in 203 calories.
how many rings does mars have
how many calories in smithwicks
90 calories.
There is no such thing as a "serving of calories".