Enviromental Factors most heavy metals occur naturally, their release as byproducts of manufacturing and other industrial and/or technological processes are man-made. Plus, God did not create plastic bottles and containers, pesticides, cleansers, solvents, and the like-we did. The best rule of thumb is not to ingest anything with a name that’s impossible pronounce, much less spell!
you are probably preaching to the choir here. One of my favorite authors is Michael Pollan who makes a similar statement about not eating what you cannot pronounce.
However, we need to be careful not to assume automatically that something occurring in nature is automatically healthy or that man-made is bad.
The issue of environmental factors is too complex for soundbites.