A new study has provided the most probable explanation for human geophagy — the eating of earth — it protects the stomach against toxins, parasites, and pathogens.
The first written account of human geophagy came from Hippocrates more than 2,000 years ago, says Cornell University researcher Sera Young, who led the study. Since then, the eating of earth has been reported on every continent. Some researchers think geophagy is simply a consequence of food shortage.
the eating of earth has been reported on every inhabited continent and in almost every country. Despite its ubiquity, scientists until now have been unable to definitively explain why people crave earth. Several hypotheses had been considered plausible.
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