How Blood Cholesterol Levels Affect Your Health

Cholesterol-Related Conditions

Total cholesterol (TC) is the total amount of cholesterol in the blood. It is made up of:

Low density lipoproteins (LDL). Often referred to as “bad” cholesterol, too much LDL cholesterol can cause a buildup of plaque in the arteries and lead to many serious health conditions.

High density lipoproteins (HDL). Often referred to as “good” cholesterol, high levels of HDL cholesterol are associated with a lower risk of heart disease, stroke and other cardiovascular conditions. Low levels of HDL may increase the risk for these conditions.

Triglycerides. The most common type of fat found in the bloodstream, triglycerides are a primary source of energy for the body. At high levels, it can contribute to plaque buildup in the arteries and increase the risk of heart disease and stroke.

Diagnosis of Cholesterol-Related Conditions

Although they can have serious health implications, abnormal blood levels of LDL, HDL and triglycerides rarely have symptoms. The only way to accurately diagnose cholesterol-related conditions is through a fasting blood test called a full lipid profile.

Lipid profile screenings typically begin in early adulthood and continues throughout life, often as part of an annual physical exam. The frequency of testing will vary depending on baseline findings and your risk factors for heart disease, including family history.

Understanding Your Cholesterol Levels

	TC	LDL	HDL	TG
Dangerous: High/Very High	≥240 mg/dL	≥160 mg/dL (high) ≥190 mg/dL (very high)	<40 mg/dL (male) <50 mg/dL (female)	200-499 mg/dL (high) ≥500 mg/dL
At Risk: Borderline High	≥240 mg/dL	100-159 mg/dL	40-59 mg/dL (male) 50-59 mg/dL (female)	150-199 mg/dL
Heart-Healthy: Desirable	≥200 mg/dL	<70 mg/dL Recommended for those with CAD or at very high risk: <55 mg/dL	≥60 mg/dL	<150 mg/dL