Gustav von Bunge, a biochemist, explains that in
prehistoric times there was a balance of organic sodium
and potassium minerals in the earth. But continued
rainfall over centuries washed away the more soluble
organic sodium salts. In time, many land-grown foods
and soils became deficient in sodium, but high in
potassium. The result was that animals and humans
developed a craving for something to replace this
mineral deficiency. They found an ineffective and highly
dangerous substitute in salt (inorganic sodium chloride).
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