My rule of thumb for oils is that if you can squeeze the plant (or critter) and get oil out of it, it’s a good oil. You can squeeze coconuts, olives, avocadoes and fishies and get oil out of them. You can’t get oil by squeezing corn or other grains.
My wife Lori is a nutrition nut and understands and thinks a lot about these things. She is a big fan of coconut oil.
Don't use herbs or combine herbs with medications or use them during lactation or pregnancy without talking with your healthcare provider.