Comment by putnambr

From your link, a specific PAH called benzopyrene _may_ cause cancer in low amounts. It's a pretty extraordinary claim to say that we should be concerned about carcinogens from cooking with cast iron, which has been used long before our current high rates of cancer. I could see that being an argument against certain oils, but contrast that with the corresponding increase in cancer rates after the proliferation of teflon and PFAS in cookware/durable goods/clothing/lubcrication.