This article just emphasizes that there is most likely some bad in everything that we try to do that is good. I think everyone needs to read this one and realize that our world is just polluted and when our body gets polluted, we get sick. We can be polluted by pathogens, we can be polluted by metals, or both.
/www.researchgate.net/profile/Saeed_Nagra/publication/237276327_Distribution_of_Some_Trace_and_Macrominerals_in_Beef_Mutton_and_Poultry/links/0a85e53b12356ddaf3000000.pdf