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?
It is generally recognized that high saturated fat consumption contributes to increases in LDL cholesterol. Trans fats are worse of course, but saturated fats in foods like hamburgers or ice cream are still a problem.
Interesting article on this: https://www.healthline.com/nutrition/5-studies-on-saturated-fat
The 7 Countries Study, upon which the hypothesis that saturated fat causes heart disease was based, has been proven to be highly flawed and misleading. Ancel Keys intentionally left out the data from many countries that contradicted his claims. During the last 20 years many studies have come out showing there’s no correlation between saturated fat and heart disease, and pretty weak association between high LDL and heart disease. Obesity, insulin resistance and systemic inflamation are much higher predictors. And there’s a lot of information to suggest seed oils - canola and soy bean oils especially - are quite harmful.