Because the body regulates the level of cholesterol in the blood regardless of how much you eat. (ntoi.ie)
They're packed full of soluble fibre, which reduces the absorption of LDL cholesterol in the blood. (superchargedfood.com)
Not all cholesterol is bad — the human body needs cholesterol to function properly, however some foods (those high in saturated fat) raise the levels of bad cholesterol in the blood. (avocadosfrommexico.com)