Toni Bark was once trained as an MD, but currently she practices Classic Homeopathy (which, in case you need a reminder, is premised on the falsity of all of modern science and has also been demonstrated beyond reasonable and unreasonable doubt not to have any beneficial health effects). Anything science-based she has left behind long, long ago. Bark does, however, run something called the Center for Disease Prevention and Reversal (uh huh), and through her web site she peddles a variety of crap including Essential Living Foods...
More lunacy here: Encyclopedia of American Loons: #1345: Toni Bark