does cardio fasting aid weight loss

OH and by the way, your body adjusts to some changes over time. So, something like fasted exercise will trigger the body to adapt and prepare for the fasting exercise on a metabolic level. It may be more efficient release of stored energy, but that is also likely to be paired with more efficient replacement of the stored energy. For a marathon runner, that is a good thing if not taken to extremes. For a weekend warrior, that is a bad thing if the rest of the week is spent efficiently storing energy for the weekend.