This is not about di-hydrogen momoxide in your coffee.
Flouride should be avoided. mercury should be avoided. GMO products have not been proven safe. Roundup is dangerous. (I like DDT to control mosquitos)
Do some homework.
I worked on Crest in the sixties. I've seen what fluoridated toothpastes have done to virtually eliminate childhood caries.
As children, we played with mercury. Yeah, it's toxic. But we knew better than to ingest it.
I've been a farmer. I understand how hybrid seeds and genetic modifications have increased yields, reduced pesticide and fertilizer costs, while improving nutrition -- worldwide.
And I've used Roundup by the truckload. It works great -- without the toxicity problems associated with most herbicides.
You live your life. I'll live mine.