We only know a fraction of what happens/goes into our food. I am reminded of something that happened in the UK not so long ago. A criminal gang were getting hold of rotting and condemed chicken meat soaking in bleach, removing the rotting flesh and repackaging it and selling it to the supermarket chains. It was so widespread that if you ate chicken at all you were very likely to have bought and eaten some of this meat. This was found out about eventually what else goes on that we dont get to hear about ???