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?
We tried that in the 90s, it went poorly: https://en.wikipedia.org/wiki/Trans_fat#History
I am not suggesting we add any additives, only to remove an existing fat from the mixture that makes up cooking oils.
It seems like the removing saturated fats part worked fine. They just messed it up by replacing them with trans fats which were even worse.