Our local feed co-op will be getting this in soon, in a new powdered form, so it will be food grade DE mixed with the calcium bentonite that is standard to the RLE product line (includes Stall Dry and others). The calcium bentonite is what makes up the "clay" part of their brand of DE, and is reputed to "give the birds extra minerals" and what I want to know, is: do you allow the chooks to eat this? Are you mixing into their feed at the suggested rate of 2-4%? (I've heard differing ratios... ) Or are you keeping it strictly for the coop management, ie dryness, fly reduction, parasite control as well as using it on your birds? Any advice on this will be *hugely* appreciated!!! We've had a terrible time locating food grade DE here in BC for some strange reason! And the cost of shipping it was going to be through the roof, more than a 50 lb bag of the DE, LOL!