I noticed that almost all types of cooking oil (vegetable oil, olive oil, peanut oil, etc) contain some saturated fat. Since saturated fat is known to be a contributor to heart disease, then could you simply remove the saturated fats from the oil to make it healthier?
https://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good
To summarize:
Trans fat is the bad one and is even banned in many countries including the USA. It is formed as a byproduct when making many processed and fast foods.
You should get less than 2% of your fat calories from trans fat - preferably you should avoid them at all costs.
Saturated fat isn’t as bad as trans but it’s still not beneficial, the jury may still be out on exactly how bad it is, but it’s not healthy so it should be limited.
You should get less than 10% of your fat calories from saturated fat
Unsaturated fat is healthy, it’s good for you and it’s required in our diet as our bodies need it and can’t make our own.
According to this article, It is generally recognized that high saturated fat intake is associated with heart disease.