People who don't understand the real essence of holistic healing will never understand what this Science is all about! People who treat symptoms with herbs and supps are just one step above the lowly MD, as far as I am concerned, there is no science behind it just promises that this herb will help this symptom or that supplement will treat that other symptom, this is not holistic healing its selling products!
Herbs are really no different than foods. In fact many are foods. So you are saying that eating foods is quackery? By the way the science does exist. You can check Medline for starters and find all sorts of evidence proving the efficacy of herbs. What has no science behind it is the quackery of claiming NPN is dangerous. Or claiming nitrogen is a protein, or that acids cause the tissues to decay in to goo, or that the lymphatic system becomes acidic causing disease, or the numerous other made up pseudoscientific claims that you know who has made and that all have been proven bogus.