Lolly,
I think you got the right attitude of caution when deciding to use CAM concurrently with conventional treatments.
The complex data in the article I posted is mostly from laboratory experiments on cells. It may even be more complicated or different in humans if I understand correctly, for instance, the activity of supplements such as the various forms of vitamin E depending on if one looks at what happens in the guts or in the liver: see
http://dmd.aspetjournals.org/cgi/reprint/32/10/1075.pdf
This is reference #62 in the article & it deals in great detail with Vitamin E