Mycotoxin toxicity is a poisoning caused by mycotoxins found in mold (fungi) that grow on food like cereals, dry fruits, and coffee beans when left exposed to air for a long time. While the signs of mycotoxin toxicity vary depending on several factors, but acute poisoning symptoms include rashes and gastrointestinal issues. Chronic symptoms are manifested through kidney disease, liver failure, depression, and even cancer.