I eat keto. And you don't gorge on fat but no need to avoid it. I eat mayo several times a week.

For health purposes you need fifty to seventy grams a day between omega three and six.

But seed oils and corn oil, along with soybean oil, aren't goof for you. I get the vast majority of my fats from meat, fish and eggs. Exceptions are a tablespoon or two of mayo, and ranch dressing or Italian dressing. And butter now and then.