This runs through my mind whenever I see the thread title:
Pneumonoultramicroscopicsilicovolcanoconiosis!
(See
http://en.wikipedia.org/wiki/Silicosis for what I mean. Longest real word in the English language, if I recall correctly, or was at one time.)
But seriously, y'all be careful with this stuff. Don't breathe it, okay? There's a real risk of permanent lung damage, especially with the DE that isn't food-grade.
And it's an abrasive -- that's part of how it works on insects. (It also absorbs oils, so it dries out their waxy coating and causes them to dehydrate.) If I was getting mouth sores or stomach aches from consuming the stuff, I'd stop in a heartbeat... yikes!
I wonder how much dirt we're biologically "supposed" to eat for good health? And what kinds? Not a rhetorical question -- I'm really curious!