and to add on an important extra data point, 1lb of fat is roughly 3500 calories. So that one 220 calorie treadmill walk is 0.06lb or about 1lb lost per 16 walk

and to add on an important extra data point, 1lb of fat is roughly 3500 calories. So that one 220 calorie treadmill walk is 0.06lb or about 1lb lost per 16 walks, changing nothing else. Or put another way, if your office is a 30 minute walk away then you can lose just over 2.5 lb/mo by just changing your routine to walking instead of driving (5×2×4×220÷3500 = ~2.5) and not changing your diet at all.