Does eating shark cartilage prevent cancer in humans?

Very controversial. Claims of use of shark fins to lower cholesterol & to combat cancer & heart disease have not been scientifically supported at this time. There is a health risk in ingesting shark fins. It is a predator fish with of high levels of bmaa (neurotoxin), arsenic & methylmercury.
Shark cartilage. Eating shark cartilage does not prevent cancer in humans. The quack literature is replete with claims of how this works including statements that suggest that sharks never get bone cancer -- of course not, they have no bones. The one claim that is true is that eating shark cartilage will definitely result in the death of more sharks.
No. There are no clinical trials that show that shark cartilage prevents or treats cancer.

Related Questions

Does shark cartilage help prevent cancer?

Cynical fraud. Simply made up as a money-maker. Sharks do so get cancer. I actually read the one publication, and the sole evidence that it "worked" was that tumors biopsied before and after the animals were treated looked different -- but this is the rule with cancer.
Very controversial. Shark fin (cartilage) is used medicinally in china to lower cholesterol & to combat cancer & heart disease but it's benefits are controversial as there is no scientic proof at this time. There is a health risk in ingesting shark fins. It is a predator fish with of high levels of bmaa (neurotoxin), arsenic & methylmercury.