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Cholesterol

Cholesterol is a soft fat-like substance found in all body cells. It is important in the healthy body because it helps to build certain body tissues. However, when a person has too much cholesterol in the blood, it increases a person’s risk of having a heart attack by building up in the arteries, calcifying, and leading to arteriosclerosis, also called atherosclerosis or hardening of the arteries. Cholesterol is mostly produced in the human liver, and is found in animal foods, especially egg yolks, organ meats (like liver and kidney) fatty meats and whole milk and other dairy products. Vegetables do not contain cholesterol. 

Know Your Blood (Serum) Cholesterol Numbers

Number What it Means
Below 180mg/dL Desirable
200 mg to 239 mg/dL Normal to high normal
240 mg to 239 mg/ dL High

Source: Mayo Clinic