This book is the story about how a reputable researcher (PhD in Agricultural Biochemistry and Nutrition from Rutgers University and MA in Nutrition Science from Cornell University) came to show that shark cartilage has properties that can benefit people based on the process of antiangiogenesis. When a tumor grows, the collection of cells generate new vascularity around it to bring the tumor nutrients so it can grow more. Antiangiogenesis inhibits the growth of new vascularity (blood vessels), so the tumor is starved and reduced.
If you pay attention to news programs about cancer, there have been several that have talked about new ways to do this based on antiangiogenesis demonstrated by the shark cartilage studies. Some of them have been chemical or physical ways. None that I have seen work too well and they tend to have bad side effects.
I read this book first when my Mom got cancer. Her diagnosis was advanced, aggressive and they didn't give her a year. She lived nearly eight more good years. My sister was diagnosed with cancer too. When taking shark cartilage, she said she could feel the size of the tumor reduced. After surgery, she refused chemotherapy. And, seven years later is doing great - still taking shark cartilage. Now, I have a large benign tumor. Among other things I'm doing for my health, I'm now taking shark cartilage. It makes sense to me. One doctor suggested a more invasive treatment, embollization (sp?), which would cut off nutrients to the tumor, essentially antiangiogenesis.