In 1902, the scientist John Beard, at the time Professor at the University of Edinburgh, proposed that the pancreatic enzyme trypsin represents the body'¿¿s primary defense against cancer and would be useful as a cancer treatment. Despite his documentation and reputation '¿¿ he was nominated for the Nobel Prize in 1906 for his work in embryology '¿¿ most cancer experts rejected Beard'¿¿s thesis outright. However, not everyone dismissed Beard. A number of physicians employed pancreatic enzymes in the treatment of patients diagnosed with advanced cancer, often with remarkable results as reported in the scientific literature. These successes provoked a heated debate about the therapy in the first decade of the 20th century. In 1911 Beard published The Enzyme Treatment of Cancer and Its Scientific Basis, outlining his hypothesis, and the compelling results. Though published to some very positive reviews, the book was soon forgotten as the scientific community enthusiastically latched on to Madame Curie'¿¿s claim that radiation represented a simple non-toxic cure for cancer. It would be years before scientists realized radiation cured few cancers and was quite toxic '¿¿ Madame Curie herself died as a result of her exposure to uranium. Though Beard died in relative obscurity in 1924, contemporary evidence from molecular biology confirms many of his precepts.In 2010, nearly 100 years since publication of this book, it is time Beard'¿¿s work be reread. With billions of dollars spent in recent decades on cancer research with only slight success, Beard'¿¿s thesis warrants a thorough reconsideration.