Mycotoxins are poisonous substances produced by certain molds found primarily in
grain and nut crops, but are also known to be on celery, grape juice, apples,
and other produce. There are many of them and scientists are continually
discovering new ones. The Food and Agriculture Organization (FAO) of the United
Nations estimates that 25% of the world's food crops are affected by mycotoxins,
of which the most notorious are aflatoxins.
USDA United States Department of Agriculture
Food Saftey and Inspection Service