But going to a naturopathic doctor for a diet prescription is rubbing crystals all over your body. William Li (the speaker in that talk) is an MD bringing evidence-based medicine (i.e. science) to bear on the question.
On the other hand, as naturopathic doctors themselves explain, "tradition-sensitive naturopathic practitioners ... which have tradition-based paradigms articulating vitalistic and holistic principles, may have significant problems in relating to the idea of EBM as developed in biomedical contexts."
http://www.liebertonline.com/doi/abs/10.1089/acm.2006.12.323
On the other hand, as naturopathic doctors themselves explain, "tradition-sensitive naturopathic practitioners ... which have tradition-based paradigms articulating vitalistic and holistic principles, may have significant problems in relating to the idea of EBM as developed in biomedical contexts." http://www.liebertonline.com/doi/abs/10.1089/acm.2006.12.323