There is no established tolerance limit for Zearalenone, but because it is produced by a fusarium, I would say the limits should be similar to vomitoxin (also produced by a fusarium. Acceptable vomitoxin levels in the corn ranges from 5-100ppm depending on species. Just to give an idea, acceptable levels in the corn are 20ppm for swine, 30ppm for breeding cattle/poultry, 60ppm for slaughter cattle, and 100ppm for slaughter poultry. For accepted level in finished feed product, cut those numbers in half.

Wow! Millions of things. Fur, wool, wood, iron, meat, leather, oil, lard, butter, lanolin. You could go on for ever.

Some more: arsenic, strychnine, cyanide, hemlock, glycoalkaloids, patulin, algal toxins, mycotoxins, domoic acid, fumonisins, sphingolipid, sphinganine, sphingosine, aflatoxin, ochratoxin, zearalenone.

It sure could go on for ever!

According to the U.S. Centers for Disease Control and Prevention, The U.S. National Institutes of Health, and the American Society for Microbiology, the only critical mold-related health problems that affect people with normal immune systems are mycotoxins eaten in food products (such as grain and nut products) that have become contaminated with certain molds. The fungi most frequently seen in cases of microtoxicosis are aflatoxin, citrinin, ergot akaloids, fumonisins, ochratoxin A, patulin, trichothecenes, and zearalenone. Eating mycotoxin-contaminated food will almost surely get you a trip to a hospital emergency room. Respiratory effects from molds, including inhaling airborne fungi and spores, are not typically seen in people with normal immune systems.Symptoms from household molds are seen in individuals who have an immune system response (i.e. an allergy or other sensitivity to the organism), which may range from mild to incapacitating. Symptoms are the same as for other immune responses such as hay fever from ragweed: nasal stuffiness, eye irritation, skin irritation, and possibly wheezing. Severe symptoms such as fever and difficulty breathing are usually seen only in people exposed to large amounts of mold in occupational settings such as farm workers, or in people who are immunocompromised or who have chronic lung diseases. There have been shrill and strident reports regarding the "black mold" known as Stachybotrys chartarum(Stachybotrys atra), which allegedly has caused all manner of health problems including acute lung hemorrhage. The CDC reports that no credible proof currently exists to show that "black mold", despite its foul and threatening appearance, produces any medical problems other than the typical immune responses found in allergies and sensitivities to other fungi. The CDC and the Environmental Protection Agency do recommend that molds be removed whenever they are found, to protect sensitive individuals who might come in contact with them.