Well, this is probably going to be the dumbest answer ever -or not.
I think the best way of creating good healthy habits is having a dog. Since they need their daily (quality) walk to be fit and healthy and there's no other option but walking with them, it has proven to be the best way for me to remain healthy.
Taking good care of others always provides some perspective about our own health. I think that taking diary walks improve your life in every possible way and playing with your dogs, spending time outdoors with them, taking care of their nutrition, will help you gain some consciousness about your own.
Of course, it only works if you take care of your dog properly, hehe.