That depends on who you ask. Some people say they contain excessive omega-6 acids, linolenic acid, vitamin E, and other stuff that negatively affects insulin absorption and contributes to inflammation in the body.

Others claim they're a super food, they make fried food good for you, and you shouldn't use anything else. These people are usually regurgitating dumb/useless things they heard on a trendy cooking channel.

The truth, of course, is likely somewhere in the middle.