What are Aflatoxins? Aflatoxins are a mycotoxin produced by fungi commonly found on crops. The main fungi that produces aflatoxin according to the National Cancer Institute are Aspergillus Flavus and Aspergillus Parasiticus. This substance is commonly found in a variety of foods including cereals (such as corn and wheat), oilseeds (such as peanuts and soybeans), [...]