The Truth About Minerals in Nutritional Supplements Part B
by Robert Thiel, Ph.D., Naturopath
Healthy soil is America’s greatest natural resource. But few realize that the current state of wide spread soil erosion in North America threatens our way of life. It may be hard to believe, but only a few inches of topsoil stand between you, me, and starvation. We cannot appreciate enough the importance of our relationship with the land, with soil. What is popularly called topsoil is the rich, nutrient‑laden cover of the Earth’s crust from which food crops draw their sustenance. Underneath the topsoil there may be clay, shale, or rock ‑ Substances that do not support food crops. It is only in the precious shallow topsoil that plants are seeded, germinated, sprouted, nurtured, and grown. These plants serve as food for animals on the lowest ends of the food chain. Animals that eat these plants supply food to animals on the highest ends of the food chain. Attention is important because topsoil is easily exhausted from lack of care. The best farmers replenish the soil as it is farmed. Unfortunately, this practice has become an exception to the rule, this is particularly so today.
When the soil becomes depleted, the plants often show symptoms of poor nutrition, much like human deficiency diseases. For example, a general yellow or pale green color (chlorosis) indicates a lack of sulfur and nitrogen and a white or pale‑yellow color iron deficiency. Some of these deficiencies are apparent enough to hurt the marketability of the crop. Most, however, are not visible to the shopper’s or even the farmer’s eye, and the crop is shipped to market deficient as it is. The toll that fertilization and pesticides take on the soil is wide‑reaching, ultimately including the kind of soil erosion that is now plaguing the Midwest. The most direct and immediate loss are the mineral and vitamin deficiencies in the soil that are passed up the food chain to humans (it is a domino effect) .
Commercial food processing definitely reduces the nutrient content of food [81, 82] and can be dangerous to human health . The refining of whole grains (including wheat, rice, and corn) has resulted in a dramatic reduction of their natural food complex nutrition [11,82]; specifically the milling of wheat to white flour reduces the natural food complex vitamin and mineral content by 40-60% . Food refining appears to reduce trace minerals such as manganese, zinc, and chromium  and various macrominerals (such as magnesium) as well [10,56]. The treatment of canned or frozen vegetables with ethylenediaminetetraacetic acid (EDTA) can strip much of the zinc from foods . The high incidences of disorders of calcium metabolism  suggest that the forms of calcium many are consuming simply do not agree with the body (and sometimes result in calcium loss ).
Organically-grown produce appears to contain higher levels of some essential minerals than does conventionally (non-organically) grown produce [84,85] and appears to contain lower levels of toxic heavy metals . Even if modern food practices did not affect nutrition (which they do), all minerals that humans need for optimal health do not exist uniformly in soils. “Soils in many areas of the world are deficient in certain minerals; this can result in low concentrations of major or trace minerals in drinking water, plant crops, and even tissues of farm animals, thus contributing to marginal or deficient dietary intakes of humans . From a geological perspective, a few examples include iodine, molybdenum, cobalt, selenium, and boron [2,70,77]. Although humans need at least twenty minerals (over sixty have been found in the body), most plants can be grown with only the addition of nitrogen, phosphorus, and potassium compounds . If other minerals necessary for human health are reduced in the soil, the plant can (and will) grow without them. This means, though, that constantly farming the same ground can result in the reduction of some of the essential minerals we as humans require for optimal health .
Ground Up Rocks Pose Risks
Rock minerals are not optimal for human health and post health risks. Perhaps it should be mentioned that typical multi-vitamin-mineral formulas are dangerous and do not result in optimal health. A study involving 38,772 women in the USA who took synthetic multi-vitamins with ground up rock minerals found that the women died earlier than those who did not take them . Other studies have concluded that the acid-processed rocks that many take as calcium supplements increase risk of cardiovascular disease and other problems —yet those studies did not find problems with food calcium.
Ground-up rocks are dangerous to ingest. Yet, 100% food vitamins and minerals are beneficial as well as essential to human health and longevity.