Cholesterol can be confusing because, on one hand, it is essential to the function of cells. It is a fat and is a primary ingredient in cell membranes. On the other hand, it helps plaque form in the heart's arteries.
There are two kinds of cholesterol in our bodies.
Low-density lipoprotein (LDL) cholesterol helps plaque form in the heart's arteries, while high-density lipoprotein (HDL) cholesterol makes it harder for that plaque to form.
Trans fats and saturated fats are the kinds of fat that get deposited in the arteries, increasing the risk of heart disease.