Having traveled into a third world culture, a lesson I had to learn was not to ask what I was eating if it might bother me.
Knowledge can be power. Yes, but that power can cripple us if it causes us to spend all our time worrying over what we cannot control. And, if we can control it, is really worth all the time it takes to manage the situation?
Deciding what battles are the most important can be very difficult.
I hope you find a balance that works for you.