Description : Does anyone else have a violent reaction to shredded cheese?
Last Answer : “In humans, a dose of 500 mg/kg/day repeated over multiple days caused nausea, vomiting, and diarrhea.” From Wikpedia page on natamycin https://en.m.wikipedia.org/wiki/Natamycin It also says some people are allergic to it. Check it with a doctor. It may as well be unrelated to cheese.