I definitely learned something on this thread. It’s probably an easy mistake to make ... think of all the people that don’t know that and don’t have a forum for someone to warn them.
Tractor Supply has taken to selling it whereas before, I would order it from human health supplements websites.
It’s a darn sight cheaper at TC.
I used to pay $30 for a 3 pound bag at VitaCost.
https://www.tractorsupply.com/tsc/search/diatmomaceous%20earth?
The stuff to avoid is ALL the DE sold in garden centers and pool supply shops.
They’re not edible and may contain detrimental chemicals.
Helpful hint:
If you dissolve DE in water and put it in a spray bottle, you now have your own deadly to fleas spray that is totally non-toxic to pets.
It flies in the face of reason but when the spray dries, it turns back into savage little sharp bits that slice and dice fleas and ticks like crazy.
Southern States used to sell such a thing but all of ours closed up 30 years ago and now I make my own.
We are very blessed to have each other here.