Understanding HDL Cholesterol: Normal vs Optimal Ranges
Also known as: high-density lipoprotein, good cholesterol, hdl
?What is HDL Cholesterol?
HDL cholesterol is a lipoprotein that transports cholesterol from tissues back to the liver for disposal, often called "good cholesterol." Higher HDL levels are associated with better cardiovascular health and lower risk of heart disease. HDL cholesterol is a key component of lipid screening and metabolic assessment.
!Why It Matters
HDL cholesterol plays a protective role in cardiovascular health by helping remove excess cholesterol from the bloodstream and artery walls. Low HDL levels may suggest increased risk for atherosclerosis, heart disease, and stroke. Monitoring HDL is essential for assessing overall cardiovascular risk, particularly when considered alongside other lipid markers.
Reference Ranges
| Range Type | Min | Max | Unit | Note |
|---|---|---|---|---|
| Lab Normal | 40 | — | mg/dL | Standard lab reference range |
| Optimal | 60 | — | mg/dL | Evidence-based optimal range for health |
| Longevity Target | 60 | — | mg/dL | Per longevity medicine research (Attia et al.) |
Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.
Symptoms of Imbalance
- No direct symptoms; low HDL is often asymptomatic
- Chest discomfort or angina (if cardiovascular disease develops)
- Shortness of breath during exertion
- Fatigue or reduced exercise tolerance
- Family history of early heart disease
How to Improve Your Levels
- 1Engage in regular aerobic exercise (150 minutes per week of moderate intensity)
- 2Increase intake of unsaturated fats from sources like fish, nuts, and olive oil
- 3Reduce refined carbohydrates and added sugars
- 4Maintain a healthy weight through balanced nutrition
- 5Quit smoking if applicable
- 6Limit alcohol consumption or consume moderately
When to Test
HDL cholesterol should be measured as part of routine lipid screening during general health check-ups, typically every 4–6 years for adults, or more frequently if there is a personal or family history of cardiovascular disease, diabetes, or abnormal lipid levels.
Related Biomarkers
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