|  | Definition: |  | A fungal toxin which is a powerful liver carcinogen. It is produced by  Aspergillus flavus and A. parasiticus, which grow  easily on beans, grains, and  peanuts which are inappropriately stored in warm, humid conditions. The  presence of aflatoxins in contaminated food supplies is thought to  contribute to the high levels of liver cancer in undeveloped and developing countries. |