Shark cartilage is falsely promoted as a cancer cure on the basis of an alleged lack of cancer in sharks. According to Ostrander et al (2004) this practice has led to a continuing decline in shark populations, and, perhaps more importantly, patients have been diverted from otherwise effective cancer treatment. They suggest that “the evidence-based mechanisms of evaluation used daily by the formal scientific community should be added to the training of media and governmental professionals”.

(Source: Wikipedia)

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