Grapeseed oil is over 70% polyunsaturates, even higher than soybean or corn oil. However, the polyunsaturated fatty acids it contains are stable with cooking, and have been shown to help boost HDL "good" cholesterol in a similar way to monounsaturates such as olive oil. There's more info about grapeseed oil in this article.

I wouldn't stop using olive oil though .. it has its own special flavour. But grapeseed oil would definitely be better for higher heat cooking.


Doreen