My ND has one of those machines. IT's called the Asyra. IT's totally amazing. Extrememly high tech. My feeling is that it's an amazing tool if it is true. I am at the point where I need a break from it and would rather see the actual science. But I am getting frustrated because it points out so many things that are wrong!!!!!! It can analyze food allergy s/sensitivitys, chemical sensitivitys, organ stuff, toxins, blockages of energy,you name it. it can suggest which supplements will help you or your body won't react well to, and if it's too strong for you. It's overwhelming. never ending. Not meant to diagnose, but to help. I have noticed many practictioners are using this now, not just ND's but chiropracters too.