The biggest benefit from my point of view is just having a much more happy, fitter and contented dog! However, all the benefits that a dog gets through regular walks is also true for the human owner. (Maybe not the going to the toilet on a regular basis bit!).
Dog walking is great for human personal and mental health. So many of you humans are over-weight or obese. What better excuse could you have for regular exercise than taking a dog for a walk?
There have been studies done that show dog owners in the USA who regularly walk their dogs are less likely to be obese than non-dog owners. This blog is about dog walking, but you can google the huge benefits you humans can have by taking a 30 minute walk every day.
While it helps burn off all those extra calories, it lowers your risk of heart disease, osteoporosis, some forms of cancer and the chance of you developing one of the fastest growing diseases in the USA, type 2 diabetes.