Aflatoxin is a secondary metabolite produced by certain strains of Asp
ergillus flavus and Aspergillus parasiticus. It is hepatotoxic in natu
re and produces liver cancer in experimental animals. Epidemiological
studies suggest its close association with human liver cancer. Literat
ure is now available dealing with its toxicity, metabolism, mutagenici
ty and carcinogenicity, but this literature is scattered. Therefore, a
ttempt has been made to evaluate its potential health risk, especially
in relation to its carcinogenicity, in a more concise manner.