Good point on PUFA, that was probably worth making it into my conclusion too.
In my home cooking I've started using macadamia nut oil (similar profile to olive oil, it's high in monounsaturated fats) in place of vegetable oil. You can get it on Amazon and it has a more neutral, slightly nutty flavor and a higher smoking point than olive oil, so it's great for slightly higher temps or cooking foods that you don't want to taste like olive oil.