Saturated fat intake may increase LDL cholesterol by making cell membranes more rigid, requiring more cholesterol to maintain fluidity.

“so when you eat lots of saturated fat what happens in your cell membranes that saturated fat gets incorporated into your cell membranes saturated fat in membranes makes them rigid so you're probably going to have to put a little more cholesterol in those membranes to keep the fluidity at a homeostatic level”