Cholesterol is a fatlike substance which is found in the tissue of humans and other animals. It plays important roles in cell membrane structure, certain hormones, and manufacturing vitamin D. Our livers procude all of the cholesterol that we need for these important functions. Excess cholesterol can contribute to antherosclerosis or clogging of the arteries.
Cholesterol is found in all food from animal sources: meat, eggs, fish, poultry, and dairy products. Some animal foods contribute substantial amounts of cholesterol, while others contribute only small amounts. There is no cholesterol in any plant-derived foods. Excess dietary cholesterol can increase blood cholesterol, which can increase the risk of coronary heart disease.
You’ll often hear cholesterol referred to as either good cholesterol or bad cholesterol. To help in our understanding of the two and their differences, we first need to define the word “lipoproteins.” These are packets of proteins, cholesterol, and triglycerides that are assembled by the liver and circulated in the blood. When we talk about LDL cholesterol, we’re referring to low density lipoprotein cholesterol. And...
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