A professional nutritionist offers over 300 tasty recipes rich in the cyanide containing substance that many scientists believe is nature's control for cancer. Cyanide, in minute quantities and in proper food forms, instead of being poisonous, actually is essential to health. Vitamin B17, also known as Laetrile, gradually has been replaced in the menus of modern man by foods which have been sweetened, processed, refined, and synthesized.