Crisco?
I’ve used it to grease a trailer hitch ball in a pinch. Glad to know it makes a good candle.
I would never think of it as food though.
Male homosexuals also use it as an anal lubricant. Oh, it’s “all purpose,” all right. At FR years ago, we often referred to Barney Frank as the Crisco Kid.
It's not any more than rapeseed (Canola) oil is food.