For most adults, HDL cholesterol should be 60 mg/dL or higher for the best protection against heart disease. The minimum healthy threshold differs by sex: below 40 mg/dL is considered low for men, while below 50 mg/dL is low for women. These numbers appear on a standard lipid panel, and knowing where yours falls gives you a practical sense of your cardiovascular risk.
HDL Targets by Age and Sex
HDL stands for high-density lipoprotein, and it’s often called “good” cholesterol because it helps clear excess cholesterol from your bloodstream. The target numbers break down like this:
- Men 20 and older: 60 mg/dL or above is best. Below 40 mg/dL is considered low.
- Women 20 and older: 60 mg/dL or above is best. Below 50 mg/dL is considered low.
- Children and teens (19 and younger): above 45 mg/dL is healthy. Between 40 and 45 is borderline, and below 40 is abnormal.
Women naturally tend to have slightly higher HDL levels than men, which is why their “low” cutoff is 10 points higher. The Cleveland Clinic lists the normal adult range as 40 to 80 mg/dL for men and 50 to 80 mg/dL for women. That upper number matters too, as levels above 80 may not offer extra benefit and could carry some risk, which is covered below.
Why HDL Matters
HDL particles act like cleanup crews in your arteries. Your liver and intestines produce a protein that enters the bloodstream and travels to blood vessel walls. There, it interacts with immune cells called macrophages that have absorbed excess cholesterol. The protein pulls cholesterol and fats out of those cells, forming a young HDL particle. As this particle circulates, it picks up more cholesterol and matures, then delivers its cargo back to the liver for disposal. This entire process, sometimes called reverse cholesterol transport, is how your body keeps cholesterol from building up inside artery walls and forming plaques.
When HDL is too low, less cholesterol gets removed from your arteries. Over time, that contributes to plaque buildup and raises your risk of heart attack and stroke.
Risks of Low HDL
Low HDL is consistently linked to higher cardiovascular death rates, but the risks extend further than heart disease alone. A large analysis from Harvard Health found that people with low HDL levels had a higher risk of death from cancer and other non-cardiovascular causes compared to people with average HDL levels. The connection isn’t entirely about cholesterol itself. Low HDL tends to cluster with other problems: higher triglycerides, insulin resistance, excess abdominal fat, elevated blood pressure, and unhealthy lifestyle patterns. This cluster is part of what doctors now call cardiovascular-kidney-metabolic syndrome, a constellation of risk factors that compound each other.
That said, low HDL is rarely treated as an isolated number. Your doctor will look at it alongside your LDL, triglycerides, blood pressure, and other factors to assess your overall risk.
Can HDL Be Too High?
For years, the assumption was that higher HDL is always better. Recent research complicates that picture. A study published in the AHA’s Hypertension journal found a U-shaped relationship between HDL and cardiovascular events in people with high blood pressure. Both low and high HDL groups had more cardiovascular events than the middle group. The inflection point appeared around 80 mg/dL, above which the protective effect seemed to stall or reverse.
This increased risk at very high levels was confirmed in men but not in women in the same study. The hazard rate was 3.5% in the group with HDL above 80 mg/dL, compared to 2.6% in the middle group. So if your HDL comes back in the 80s or 90s, it’s worth discussing with your doctor, particularly if you’re a man with high blood pressure. For most people, though, the far more common problem is HDL that’s too low, not too high.
Your Total Cholesterol to HDL Ratio
Your HDL number is more useful when you look at it relative to your total cholesterol. Dividing your total cholesterol by your HDL gives you a ratio that reflects how well your body is managing cholesterol overall. Most doctors want this ratio below 5:1. A ratio below 3.5:1 is considered very good. So if your total cholesterol is 200 and your HDL is 60, your ratio is about 3.3:1, which falls in the ideal range. If your HDL is only 35 with the same total cholesterol, your ratio jumps to 5.7:1, signaling higher risk even though your total cholesterol looks reasonable.
How to Raise Low HDL
Unlike LDL, which responds dramatically to medication, HDL is harder to move with drugs and responds better to lifestyle changes. Exercise is the most reliable tool. A meta-analysis of randomized controlled trials found that regular aerobic exercise raised a key HDL subfraction by about 11%. The effect comes from consistent activity, not occasional bursts, so habits like brisk walking, cycling, or swimming several times a week are what make the difference.
Diet plays a supporting role. The key shift is replacing bad fats with good ones. That means cutting back on saturated fats from full-fat dairy, bacon, sausage, and foods cooked in butter or lard. Trans fats, found in some margarines and processed baked goods, should be avoided entirely. In their place, eat more unsaturated fats from avocados, olive oil, and nuts. Limiting refined carbohydrates and sugar also helps, as does eating more fiber-rich foods like oatmeal and beans.
Weight loss has a compounding effect. Carrying excess weight, particularly around the abdomen, suppresses HDL and raises triglycerides. Losing even a moderate amount of weight can improve both numbers simultaneously. Smoking cessation also raises HDL, sometimes significantly within the first few weeks after quitting.
Alcohol is more nuanced. Moderate intake may have a small positive effect on HDL, but heavier drinking leads to weight gain, which pulls HDL back down. The net effect of alcohol on cardiovascular health is still debated, so it’s not a strategy worth starting if you don’t already drink.