Hello Ryan. I agree with the above posts in that walking, or any other aerobically-based exercise (e.g. cycling, swimming) can be instrumental in losing weight and reducing body fat. As with any ‘program,’ the degree with which this program will help in weight loss depends on several factors (some personal, and some programmatic). For example, personal – the individual’s current, pre-program fitness level, and programmatic – the ‘intensity’ of the walking program.
I hope that this helps.