First of all, I want to say that I am someone who believes strongly in holistic medicine, and without discounting out of hand what allopathic medicine has to offer, prefer to go that course whenever possible.
Here is my caution after looking at this site: I would be suspicious of anyone who claims to be able to cure everyone 100% of the time. That was a red flag to me. Also, after reading the dissertation, many of his patients merely needed to make simple lifestyle changes, that by themselves, without even doing the mega-doses of supplements and herbs would have been strongly beneficial to them. For example, walking to a sweat daily, quitting smoking, cutting caffeine and sugar consumption. There are many beneficial supplements that he uses that could be helpful to people, but he uses so many at one time, this was another red flag to me from a holistic perspective, for the same reason taking tons of pharmaceuticals would be. When you do so much at one time, how do you know what it is that is actually helping you, and that is not even considering the potential for problems through their combinations with one another or other simple mainstream medications. For instance, I was told to start taking ginkgo biloba once, but that is actually a problem for someone who takes ibuprofen because of blood thinning properties. I would hope that this guy thinks about these things, but sadly there are practicianers out there who don't look carefully enough at how they are taxing the body just because the substances are "natural." There is nothing natural about taking any type of supplement. Our bodies are made to run smoothly through a varied and healthy diet. I do take some supplements, but I also keep in mind the truth of the matter, which is that I am adjusting the chemistry of my body.
From my perspective, everyone I meet has some great advice on just what will help me, so I have learned to smile and thank them, but not latch on to everything they say, which is what I did at first out of hope and a feeling of desperation. Now I know to investigate thoroughly, weigh things carefully, and proceed cautiously. Once I feel the treatment is for me though, I give it my all, as in, I don't do it half-heartedly. Whatever doctor you work with, whether an MD or a naturopathic, interview them. Remember they are working for you, because ultimately it is you who has to do the work. Don't let them bulldoze you so that you are not in charge, or tell you they can fix everything, because there are too many variables out there when it comes to the human body and life force.