Celcius drink from costco ??

Iammelting

Does anyone have any experience with the celcius drink from costco that claims you will burn and extra 100 calories? Im sure its probably bad for you but I did drink part of one before zumba tonight and I seemed to higher calorie burn according to my bodybugg of about an extra 75 calories ! It could have been a fluke but I normally burn about the same at each class so maybe the drink works ? Curious if anyone drinks it ?

nitka653

***** Disclaimer: I am not a nutrition nor fitness expert, just an average jane *****

My guess is that it's caffeine or some other stimulant that's making your heart beat faster