> Also since when is exercise effective for losing substantial amounts of body fat/weight? You burn very few calories when you exercise, at least very few relat

> Also since when is exercise effective for losing substantial amounts of body fat/weight? You burn very few calories when you exercise, at least very few relative to your BMR. Is this a joke? I just ran the numbers for my BMR and what I've burned running for the month of May and get: BMR Estimate = 1.4 Kcal/min Jogging (8:30/mile pace)= 17.8 Kcal.min. The cardio is burning 1207% more Calories per minute than BMR. To put it in perspective, it would take me about 2 hours of Cardio at that intensity to burn my entire daily BMR. Running a marathon would consume almost twice my daily BMR. edit: ah, I see from your comment below that you are mistaking BMR and daily Calorie intake. Yes, exercising is often accompanied by an increase in Calorie intake and a deficit is necessary for weight loss. Diet is important, too.