Isopropyl alcohol isn't much more toxic than ethanol TBH, so don't worry if you can't get ethanol. Pure isopropyl is very available and pretty cheap where I am.

Avoid methanol though, that stuff is really nasty!  Good luck!

Also, for eating the product, you can just eat the zeolite too, it's fine to eat (with something fatty to aid bioavailablilty), you just don't want to be inhaling it on a regular basis because zeolite is very fine stone dust.