Ok, thank you for telling me! glad you did your research, I would say, that DE is relatively safe for humans since our respiratory systems are stronger, and food-grade is safer for chickens, but I still personally would not use it, but Iām not telling anyone else not to, if they see it fit.I wanted to do what you said and go by fact so I'll put this in and then leave it at thatThe FDA has stated that food-grade diatomaceous earth is low in crystalline silica and considered safe for humans. The filter-grade type is high in crystalline silica and toxic to humans.Jan 7, 2019
I got this by googling FDA diatomaceous earth, if you want to look it up
