"Cholesterol is essential for our bodies to function and without cholesterol you would die. In fact, "the majority of the cholesterol in our blood comes from our own bodies making it. I don't think a lot of people understand that concept. People mistakenly think they get most of their cholesterol from their food and that's not true. Cholesterol is used to make hormones like estrogen and testosterone, is transported into the adrenal gland to aid in hormone synthesis, repair nerves, and make bile for fat digestion, it's a structural component of our cells, it synthesizes vitamin D—it plays such a critical role in our body that we genuinely need it."
"it is an essential structural component of all animal cell membranes"
"...also serves as a precursor for the biosynthesis of steroid hormones, bile acid, and vitamin D"
"Since cholesterol is essential for all animal life, each cell is capable of synthesizing it"
"Most ingested cholesterol is esterified, and esterified cholesterol is poorly absorbed."
"Cholesterol is recycled in the body. The liver excretes it in a non-esterified form (via bile) into the digestive tract. Typically, about 50% of the excreted cholesterol is reabsorbed by the small intestine back into the bloodstream."