DE stands for Diatomaceous Earth. See Wikipedia for details here:
I have read that many veterinarians say (DE) is harmful to respiratory systems… yours, mine and your chickens. I have even read that some studies show it is Carcinogenic. Many people believe that is acts as a de-wormer due to the microscopically (sharp edges). However, I have also read that (DE) is not effective in that way when moisture levels reach over 80% (like in a chickens stomach).
But, many people still use (DE) and claim to see benefits. So I would recommend that you spend some time with your friend Google, and see what you think.
(My girls have no problem with using regular dirt for their dust baths and they seem just fine)
~Nick
I agree. I did my research as well. I didn't find any benefit to it myself. I use agricultural spray lime from time to time. It helps dry things out. Can also be mixed with water to create whitewash. I have a wood ash bin my birds use regularly to bathe in. When ranging, they find dry dirt to squirm around in.
