My guess is you'll get some push-back from folks on this but honestly, I've been carving wooden spoons, canoe cups and bowls for years and have ALWAYS used olive oil to finish them off. You'll definitely need to recoat the item from time to time (especially if you use the item a lot) but I've never had any issues with it. If my memory serves me correctly, olive oil, called "sweet oil" during the 18th century, has been used for years. To me this is like the "how do I clean my musket" discussion that pops up all the time. Some folks just use water as was traditionally done and other's have concocted personal formulas using all sorts of liquids that didn't exist during the 18th century. If that's what you want to do...great! No worries but don't forget that the old ways still work in today's world. Just my opinion, take it for what it's worth.
That's all for now. Take care and until next time...be well.
snapper