This became popular after it was marketed as a possible cure for cancer, as sharks were supposedly the 'only animals that don't get cancer'. Well, sharks can suffer from cancer, and there are no legitimate studies to support the use of shark cartilage as an anti-cancer agent.
Bodybuilders are interested in shark cartilage because of its alleged effects on promoting the healing of damaged cartilage, as it contains glucosamine. But taking shark cartilage in the whole form doesn't do anything. Don't waste your money, despite the fact that when you're injured you'll try anything. You'll be better off using glucosamine sulphate (see Chapter 9).
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