It produces a potent neurotoxin . Symptoms of gastritis are followed by liver damage. Some mushrooms in the genus Psilosybe produce mind-altering compounds that induce trances and hallucinations. Aflatoxin is made by the fungus Aspergillus flavus. Aspergillus flavus is commonly found growing on and decomposing grains and nuts.
Aflatoxin is converted into a potent carcinogen by the action of liver enzymes.
Ergot alkaloids are produced by the fungus Claviceps purpurea. This fungus grows on the seed heads of many grasses, especially rye. Today, grains that are rotting due to fungal growth are discarded. Several hundred years ago, it was not realized that bread made from rotting grain could cause the bizarre intoxication induced by ergot alkaloids. In very low doses, ergot alkaloids such as LSD have been shown to be effective in controlling migraine headaches and have even been used to ease childbirth.