I am regularly regaled with the benefits of Coconut oil (predominantly a saturated fat) but personally I am not a fan. By all means moisturise with it, use it as a mouth cleanser, rub it through hair etc, but don’t eat too much of it. The purported health benefits just don’t stack up in the research. On the other hand Olive oil (a mono-unsaturated fat) has a bucket of research showing positive health benefits including this recent report indicating that extra-virgin olive oil (EVOO) protects memory and learning ability and further, decreases the risk of brain changes commonly associated with Alzheimer's.