Laetrile (a.k.a. Vitamin B-17) is one of the most controversial topics in alternative and complimentary cancer treatments. The FDA considers laetrile, which contains cyanide, to be "a highly toxic product that has not shown any effect on treating cancer." However, proponents of laetrile tell a different story, saying laetrile has shown success in treating cancer, but is being covered up because it is a natural substance and would result in the loss of billions of dollars of profit for the cancer industry.
Below are some of the resources available (both for and against laetrile) if you are interested in learning more.
As with any dietary supplement, it is important to research both sides of the story regarding Laetrile and form your own opinion on whether it is right for you in partnership with a qualified healthcare professional.