I only have a minute to post, we're moving and haven't yet unhooked the computers.
I'm currently working on whole unpolluted mineral salts as a complete 'no-worry' source of balanced minerals, both topically and internally...baths, footbaths, and sole (so-lay).
The skin is marvellous at balancing each and every of the some 84 minerals in the mineral salts, both in and out...plus diluting toxins in the fluid around the cells.
Here's some reading on the subject from Daisy4...
My mineral salts happened to come from http://www.heartfeltliving.com
and, as far as I can tell, must be the real thing...for they seem to be working in my small experiments with footbaths.
All anxiety disappeared after two footbaths...and the edema on the tops of my feet reduced, dramatically.
I feel that these mineral salts have been through plants and animals, which have a great balancing effect. Plants, especially, limit the uptake of every mineral to the exact percentage needed for life, I believe.
In the soil, mineral nutrients are carried to plant roots by soil micro-organisms, but it is a slow procedure, micro-organisms breaking down rock, in enough water, over time.
I reason that, if there aren't enough micro-organisms in growing soil, and we don't allow growing soil to lie 'fallow' (with only weeds and grasses to protect the micro-organisms), we are shooting ourselves in the foot. There won't be enough nutrient minerals in our food. Plants will look fine, but be deficient...even stressed...and, therefore, subject to blights.
It will be my happiest day when I see food plants grown on uncontaminated land that has lain fallow for at least a year or two.
We must protect those all-important soil micro-organisms.
Nature, I've read, never leaves soil uncovered. Always, the handiest weeds and grasses cover bare soil as fast as they can.
The only way to save ourselves, as far as I can see, is to NOT till the ground, or build roads through it.
See that Japanese man's books on 'no-till'.
Read Eliot Coleman on composting from the wild...and other things.
Hope this helps.