I saw this on the news last night news.sky.com/story/1583854/frying-with-oil-more-damaging-than-lard
Thenthing is I swear that I have read recently that you shouldn't use olive oil for frying because it's harmful at high temperatures so you should use it for salads and use rapeseed oil for frying
Sometimes it is impossible to know what to do for the best
Early reading v continental custom - teachers’ thoughts sought




It now seems the hitherto saintly sunflower and corn oil produces carcinogens at high temperatures. But Olive oil doesn't. Neither does butter or lard. But they will clog your arteries. So choose how you want to die. Or live chipless.

