I supply blocks of wood to the local wood turners club so every once in a while I bring a load of wood in exchange for free coffee and donuts.
I asked them about oils they use
most say don't use anything natural like vegetable oil, corn oil, walnut oil or peanut oil, coconut oil. The reason they gave me is these natural oils in time will go rancid because they do not cure
just messing with you
but actually I have seen a warning on things like paint, varnish, finishing oils that say do not take internally. I wonder who would even consider that?