Amygdalin is primarily used in alternative medicine as a purported treatment for cancer, often marketed under the name "Laetrile" or "Vitamin B17." It is believed by some to have anti-cancer properties, though scientific evidence does not support its efficacy and it is not approved by major health authorities for this purpose. Additionally, amygdalin is found naturally in the seeds of certain fruits, such as apricots, and is sometimes used in traditional remedies. However, it can release cyanide when metabolized, posing significant health risks. Its use is controversial and heavily regulated in many countries.