I came across an interesting story from NPR today, entitled “The Old And Mysterious Practice Of Eating Dirt, Revealed“. It’s about the ancient practice of eating soil (or mineral deposits), often called Geophagy. I’ve heard about this practice in a few of the soil science classes I’ve taken over the years, and in a “World Food Issues” class I took as an undergrad. It’s an interesting phenomenon, and from what I understand the cravings to eat soil, or kaolinite specifically (a phyllosilicate clay mineral) occur mostly in expecting mothers.
There is a documentary coming out soon that highlights this normally under-the-radar practice entitled “Eat White Dirt“. Here is the trailer for the film:
I’m looking forward to the documentary. If I ever see this Kaolin sold in a store, I just might have to try it out (for purely scientific purposes of course). Have you ever eaten “white dirt”? Tell me about your experiences in the comments.