Although many of the items are natural products, we do not know what harm they might cause in the often excessive quantities that are recommended.
Cheson
Bruce D
BD
D002986:Clinical Trials as Topic; D000529:Complementary Therapies / Q000009:adverse effects*; D006801:Humans; D009369:Neoplasms / Q000628:therapy*; D008517:Phytotherapy / Q000009:adverse effects*