Allow me to shed some fat on the current situation:
In the 1940s, the oil and seed industry was collapsing and needed a new market for their products, besides the use for producing paints and plastics. The only other biological effect of unsaturated fat/vegetable oil, next to sterility, dementia, and lowering the immune system, was its influence on lowering blood cholesterol. In a "research study", cholesterol was found to dissolve in the presence of unsaturated vegetable oils. This opened the door to campaign that since cholesterol is found in the walls of blood vessels, and cholesterol levels contribute to heart disease, then unsaturated fats lower your risk for heart disease. It was taken one step further in proclaiming that saturated fat is the culprit in causing elevated cholesterol levels that increase your risk for heart disease.
However, to this day, there has never been a study that demonstrates high blood cholesterol, from the consumption of saturated fats, causes heart disease. But there are studies that show the stressful effects of polyunsaturated fats (PUFAs) on the body, and stress levels are a main contributor to heart disease.
According to Diana Schwarzbein, MD, "When you do not eat cholesterol, your body sees this deprivation as a time of "crisis" or "famine". During this "famine", insulin activates an enzyme in your liver called HMG Co-A Reductase that begins to overproduce cholesterol from the carbohydrates you eat."
As you can see, there are many factors that go into the cause of heart disease...vegetable oil being one of them. Eating the right quality of foods, in the right quantities, at the right time of the day, can exponentially improve your health. Deprivation is not the answer, nor is a chemical alternative.
My suggestion is to truly understand your body's physiology, and not put your trust in a lab chemist claiming that a+b=high cholesterol.