Study: Animals and humans eat clay to rid toxins
Friday, June 10, 2011 - 05:00
in Biology & Nature
(Medical Xpress) -- The phrase "eat dirt" takes on a whole new meaning when used by biologists, who have widely observed that humans, birds and mammals all engage in geophagy. A new Cornell study concludes that in humans, it's best explained as providing protection from dietary chemicals, parasites and pathogens.