Overall, more than 99% of the food samples tested for OTA were below proposed levels. About 59% of samples tested contained detectable levels of DON. Health Canada evaluated the samples with elevated OTA levels and determined they posed no health risk to consumers. In addition, no recalls were required.
OTA is produced during the storage of crops while DON is produced in crops prior to harvest. Foods significantly contaminated with either could result in negative health effects on the kidneys, or immune system, or cause abdominal pain, vomiting or dizziness.
The CFIA noted that the limits are set at levels far below the amount that could pose a health risk. This is the reason foods with residues or contaminants over maximum limits can still be safe for consumption.
The CFIA and Agriculture and Agri-Food Canada (AAFC) are working with other departments and industry to develop new production and processing methods that will minimize the presence of OTA and DON in foods.
