It usually transpires that, if some treatment is natural ( unpatentable) or inexpensive, it will never be investigated or established as factual within the medical community.
I first caught on to this while reading thru Pub Med and Index Medica documents. It was suggested that polyunsaturated oils (linoleic) could reduce MS attacks. The idea was given one small, deeply flawed ( later admitted) test. Meanwhile, interferon therapies were repeatedly tested and managed to produce mere marginal results - leading to drug approval. It appeared that they were testing til they got an answer they liked. Observing this changed me because I began to understand how profit driven interest can distort science. Money often determines what is 'true' and by contrast, what is 'false' or at least non-credible to supposed experts. By the way, there may be evidence that large doses of vitamin D might be as effective as any of the highly expensive "ABC" drugs used in MS. MS patients can now take Tysabri but at least the drug company admits that the drug kills some patients ! Oops. Sometimes life reminds me of a Woody Allen sketch in which a man is caught in bed with another woman and persists in denial even as she puts her clothes back on in front of his protesting wife. After the woman leaves in haste, he starts saying, "what woman?". The wife gives up.