I think wanting to eat clay could also signal deficiency in Silica - which is what's contained in clay or DE at least.
Soystud,
normal freak vs. uc freak - very funny, lol
DE has so many great health benefits, that's the reason I started it.
Anecdotally it seems to help with, d or constipation (both), dry skin, hair loss (that's the reason I am taking it), as a natural expeller of bacteria including candida, blood pressure controller, cholesterol controller, blah blah blah - you have to do your own due diligence on it ( I did).
I am up to 3 heaping tablespoons of it per day - gotta love my glass of dirt, haha!! Giving it to my 15 year old dog too, whose hair is slowly growing back in ( I'm hoping it's a sign of hair growth to come to me too, haha).