cornhole is right...
Doing cardio first thing in the morning, on an empty stomach, before you eat anything is by far the most effective. Whether you run jog or walk doing it first thing in the morning is the best time to do it for maximum fat loss. When you do your cardio workout, ou are burning calories. Lets say you wake up, eat breakfast, eat lunch later in the day, and then a few hours after lunch, you do your cardio. All you will be doing during that cardio is burning the calories and carbs of the food you just ate. When you do cardio first thing in the morning, you haven't eaten anything for the last 8 or so hours because you were sleeping. So, when your body sees that there are no carbs to burn, it goes directly to stored bodyfat. And stored bodyfat is the fat that is on your body that you want to lose..