Cholesterol is a sterol (or modified steroid), a type of lipid molecule, and is biosynthesised by all animal cells, because it is an essential structural component of all animal cell membranes; essential to maintain both membrane structural integrity and fluidity. Cholesterol enables animal cells to dispense with a cell wall (to protect membrane integrity and cell viability), thereby allowing animal cells to change shape and animals to move (unlike bacteria and plant cells, which are restricted by their cell walls). In addition to its importance for animal cell structure. But high blood cholesterol levels are a significant risk factor for heart disease and stroke. Diets that include food low in saturated fats and dietary cholesterol can reduce “bad” cholesterol (LDL) levels and increase “good” cholesterol (HDL) levels.
Some beneficial supplements to assist with cholesterol health include: