Also known as: SC, carticin, Cartilade, BeneFin
Potential uses: There are claims that shark cartilage kills cancer cells, boosts the immune system, and prevents new blood vessels from growing to nourish a cancer.
Usual dose: The forms available contain different amounts of shark cartilage. Daily doses vary from 500 milligrams to 2 grams per day.
Are there any risks? Side effects include nausea, vomiting, diarrhea, gas, and constipation.
What does the research show? No clinical studies show that shark cartilage has any affect on breast cancer or any other cancer.