Shark cartilage is the tissue that provides support for fins in sharks (Squalus acanthias). It mainly comes from sharks caught in the Pacific Ocean.

Shark cartilage became a popular medicine in the 1970s. But its popularity led to a decline in shark numbers. It was previously suggested that sharks don't get cancer, so consuming their cartilage might help prevent cancer in humans. But it is now clear that sharks do get cancer, and research hasn't shown benefits for cancer in humans.

People use shark cartilage for cancer, scaly itchy skin (psoriasis), osteoarthritis, and many other conditions, but there is no good scientific evidence supporting these uses.

Don't confuse shark cartilage with bovine cartilage, or with chondroitin, which can be sourced from shark cartilage.

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