Depends on Doctor
Lipoproteins are complex particles which carry fat molecules in the water outside cells.
particles deliver fat molecules into cells; HDL
particles can remove fat molecules from cells. Ldl is always in nmol/l, best <700, HDL in µmol/l, best large-hdl >10 see NMR particle test. Cholesterol, a fat molecule made by every single animal cell, is ~30% of all fat molecules in all membranes.