One of the biggest questions in the quest for better body composition is, "when is the best time to perform cardio?" While any type of cardio will aide in better body composition. Scientifically, your body is primed for fat loss upon waking.
Performing cardio in a fasted state ensures that the bodies primary source of fuel is fat stores. Eventually the fuel source changes over to glycogen and lean muscle tissue, but taking advantage of that fat time frame can be the key to better body composition.
For starters, try to walk for 30-45 minutes upon waking in a fasted state. To further enhance the metabolism, sip on a green tea or black coffee before performing your walk to aide in the fat loss.
After your walk, eat a high protein breakfast! Walk your way to success!