actually, that's not true. there are plenty of clinical trials out there on everything from gingko to black cohosh. the latter i worked on at an Ivy med school's CAM (complementary and alternative medicine) research center.
over a decade ago, NIH created a division, NCCAM, funding about 11 centers at med schools to do just the research you are talking about. all that hoity toity double blind stuff that you discuss. and many of these centers are still at it. not sure if they have funded additional centers.
also, there are only a few CME courses ACCME accredited to teach health professionals, mostly MDs, about CAM and Intergrative medicines. i raised funds for three major ones, two of which are still up and running:
U of Az Nutrition CME. You would probably love this course. Check out Andy Weil's website and the course brochure. Also, P&S and U of AZ used to hold a Botanical Medicine in Modern Clinical Practice CME discussing everything that you talk about. Alllllllll the major supplements are discussed down to the bonds that hold together Ginseng, etc etc. Lastly, there were 5 CME courses given by P&S on Integrative Pain Medicine, and alternatives to typical drugs, anti-inflammatory supplements was a large topic taught by P&S docs.
Unfortunately, many med schools don't touch on supplements and the like, where the rest of the world really relies on them so much more than the US. I mean, P&S has a center for Holistic Urology. The pace is basically baby steps, but it's happening.
For what it's worth.
D712
p.s. I take Evening Primrose and DGL.
ps.ps. Check out the American Botanical Council website out of Austin, TX if you are further interested. ABC is trying to get standardized labeling on ALL nutritional supplements. It's a good cause.