If I may deviate a little here, being brought up on a small cattle farm which was fertilized with superphosate, my father used to say the cattle were always short on minerals and try as he did they would eat the bark from trees. The reason, I find out 60 years on is that the fluoride in the fertilizer locks up the minerals in the grass and only the deep rooted trees can bring trace minerals up from below the polluted top soil. Also a chestnut orchard died out from super ph. Another cattle killing agent was bloat caused by fluoride build up in spring rye and clover grass from super. It kills one type of bacteria in the beast digestive system and allows another to proliferate that produce gas to lethal amounts. Thousands of cattle died and still do each spring the antidote being as simple as magnesium and of course stop the fluoride loaded fertilizer. From our health point of view it's fluoride that locks up the minerals we need to stay healthy in much of our foods. The barstards at the top know this, how many hu-mans have they killed.?