I have had that same thought a time or 2 myself in the past year. I would recommend first you do your research. There is a nutritional balance that has to be kept either through balancing the meals or adding supplements. I wasn't planning on saying anything to anyone here until I was finished but 2 months ago I started a canine nutrition certification program. You might want to look into something like that before you begin. The certification won't get you a job in a vets office or hospital, but it will give you the foundation you'll need in dealing with dog food.