Percentage of Mineral Depletion From Soil During The Past 100 Years, By Continent: North America 85% **
**Some US farms are 100% depleted and some are 60% depleted, the average is 85% depletion as compared to 100 years ago. This is worse than in any other country in the world because of the extended use of fertilizers and "maximum yield" mass farming methods.


"We know that vitamins are complex chemical substances which are indispensable to nutrition, and that each of them is important for the normal function of some special structure of the body. Disorder and disease result from any vitamin deficiency. It is not commonly realized, however, that vitamins control the body's appropriation of minerals, and that in the absence of minerals they have no function to perform. Lacking vitamins, the system can make some use of minerals, but lacking minerals, vitamins are useless".


THE DISTRIBUTION OF REDOX-SENSITIVE TRACE ELEMENTS IN PRECAMBRIAN CARBONACEOUS SHALES
http://gsa.confex.com/gsa/2001AM/finalprogram/abstract_21772.htm