HDL Cholesterol
HDL (high-density lipoprotein) carries cholesterol away from arteries back to the liver for removal. Higher HDL is generally protective against heart disease, although extremely high HDL (>90 mg/dL) does not provide additional benefit and may signal genetic variants.
Normal Range
Men: > 40 mg/dL (protective > 60); Women: > 50 mg/dL (protective > 60)
Reference ranges may vary slightly between laboratories. Always interpret your result in context with your doctor.
Why is HDL measured?
HDL is part of the standard lipid panel. Low HDL is an independent cardiovascular risk factor, particularly when combined with high triglycerides and abdominal obesity (the metabolic syndrome pattern).
High HDL means…
HDL above 60 mg/dL is protective. HDL above 90 mg/dL in men or 100 in women is unusual and may reflect genetic variants without additional cardiovascular benefit.
Low HDL means…
HDL below 40 (men) or 50 (women) is a cardiovascular risk factor. It is often part of metabolic syndrome alongside high triglycerides, abdominal obesity, and insulin resistance.
Symptoms associated with abnormal HDL
When HDL is high:
- No symptoms — usually a healthy finding
When HDL is low:
- No direct symptoms but increased cardiovascular risk
- Often associated with metabolic syndrome features
How to improve your HDL
- Aerobic exercise raises HDL more than any other intervention — 150 min/week of moderate intensity is the floor.
- Quitting smoking raises HDL by 5–10% within months.
- Replace refined carbs with healthy fats (olive oil, avocado, fatty fish).
- Modest alcohol (≤1 drink/day women, ≤2 men) raises HDL but the cardiovascular benefit is offset by other harms.
Frequently asked questions about HDL
Can I have too much HDL?
Above 90 mg/dL HDL stops providing additional cardiovascular benefit, and very high values may indicate genetic variants. Some studies even suggest a slight risk increase at very high HDL levels — though for most people, focus on the rest of the lipid panel.
How long to raise HDL with exercise?
Measurable HDL improvement typically takes 8–12 weeks of consistent aerobic exercise. The longer and more intense the activity, the bigger the increase.
Medical Sources
This page is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider about your individual results.