Zeolite is the active mineral in the product. A certain type of it which is very expensive and not used in farm products is actually safe (debatably) for human consumption. The other cheaper form ( in your product) contains metals and is absolutely toxic without any doubt to all life if enough...
This is not the first time I’ve heard of this happening although there is no definitive proof of coarse that that is what’s causing the deaths.
Zeolite
