When plants are grown in nutrient depleted soils, which most of our soils are now, they actually absorb toxic metals more easily, therefore we are taking heavy metals in through our food.
We are exposed to mercury through silver amalgam fillings that contain 30-50% mercury that slowly leaches into our bloodstream, fish, vaccinations, high fructose corn syrup and tattoos.
We are exposed to lead in paints and cosmetics.
Arsenic is in by-products of coal burning, insecticides, fungicides, drinking water, seafood, and pressure treated wood.
Cadmium is in cigarette smoke and hair dyes.
Aluminum is in antacids, antiperspirant, vaccines, baking powder, aluminum cookware and cans and cosmetics.