Committing to an hour or so per week - using running since you used that as an example: with a pace of 7mph (which no obese/most overweight people can do) you w

Committing to an hour or so per week - using running since you used that as an example: with a pace of 7mph (which no obese/most overweight people can do) you would wind up at 49 miles/week. But that's unreasonable and untenable for most attempting to lose weight - you have to fix your diet in order to lose weight. You cannot outrun a shitty diet.