Also known as amygdalin, laetrile is a very strong compound; it was once believed to be a cancer preventative and cure but now it is illegal to be used to treat cancer in the United States.
Sources in the Diet
Kernels of apricots, plums, peaches, cherries, peaches, and apples are good sources of laetrile. Almonds and mung bean sprouts have laetrile as well.
Recent Studies and Articles
Laetrile and cancer
-  – http://www.cancer.gov/cancertopics/pdq/cam/laetrile/patient
-  – The New Encyclopedia of Vitamins, Minerals, Supplements, and Herbs