I think it is not necessary to do cardio on empty stomach.
If you eat a little meal before Cardio, you will have more energy for the cardio. And so you "burn" more calories.
Bye
Hello,
my favourite Cardio is Running.
Thats my first post on this board, so I want to say hello to all of you.
My English isn´t very well, but I try my best. :)
Bye