What Does Low HDL Cholesterol Mean, and How Do You Raise It?

High-density lipoprotein (HDL) cholesterol is often called “good” cholesterol because it helps transport excess cholesterol from your arteries to your liver, where it can be broken down and removed. When your HDL level is too low, you may be at higher risk for plaque buildup in your blood vessels and, ultimately, heart disease.

What Is Considered Low HDL?

According to the American Heart Association and other leading health organizations:

• For men, HDL below 40 mg/dL is considered low.
• For women, HDL below 50 mg/dL is considered low.

If your HDL level falls below these thresholds, it’s time to look at lifestyle and, in some cases, medical steps to raise it.

Why Low HDL Matters

• Increased cardiovascular risk: Low HDL means less “cleanup” of cholesterol in your arteries, making plaque buildup more likely.
• Greater chance of heart attack or stroke: Studies show people with low HDL tend to have more atherosclerosis (hardened arteries).
• Often linked with other risk factors: Low HDL frequently coexists with high triglycerides, high LDL (“bad”) cholesterol, obesity or insulin resistance.

Common Causes of Low HDL

Several factors can contribute to low HDL levels:

• Genetics: Some people naturally have lower HDL because of inherited traits.
• Poor diet: Diets high in refined carbohydrates, trans fats or added sugars can lower HDL.
• Sedentary lifestyle: Lack of regular physical activity reduces HDL production.
• Smoking: Tobacco use directly lowers HDL and damages blood vessels.
• Excess weight: Extra body fat—especially around the waist—tends to drive HDL down and triglycerides up.
• Certain health conditions: Type 2 diabetes, metabolic syndrome and chronic inflammation can all reduce HDL.

Signs You May Have a Cholesterol Issue

Most people with low HDL don’t feel any symptoms. Cholesterol problems are usually discovered during a routine blood test called a lipid panel. If you’re unsure about your risk, you could try a free, online symptom check, using the doctor approved Ubie Symptom Checker.

How to Raise Low HDL: Lifestyle First

1. Get moving

   • Aim for at least 150 minutes per week of moderate-intensity aerobic activity (brisk walking, cycling or swimming).
   • Include strength training twice a week to build muscle and improve metabolism.

2. Choose healthier fats

   • Replace saturated and trans fats (found in fried foods, processed snacks, baked goods) with monounsaturated and polyunsaturated fats:
     • Olive oil, canola oil
     • Avocados
     • Nuts and seeds
     • Fatty fish (salmon, mackerel, sardines)

3. Limit refined carbs and added sugars

   • Cut back on white bread, pastries, soft drinks and candy.
   • Opt for whole grains: brown rice, quinoa, oats and whole-wheat products.

4. Maintain or achieve a healthy weight

   • Losing even 5–10% of body weight can improve HDL and other cholesterol numbers.
   • Combine calorie control with exercise for the best results.

5. Quit smoking

   • Stopping smoking can raise HDL by up to 10% within months.
   • Seek support from counseling, nicotine replacement or prescription medications if needed.

6. Drink alcohol in moderation (if you drink at all)

   • Some studies link light to moderate drinking (up to one drink per day for women, up to two for men) with higher HDL.
   • Weigh the risks—alcohol can raise triglycerides and lead to other health issues if overused.

Medical Options to Consider

If lifestyle changes alone aren’t enough, your doctor may discuss medications:

• Niacin (vitamin B3): Can raise HDL but may cause flushing, itching or, rarely, liver issues.
• Fibrates: Help lower triglycerides and can modestly boost HDL.
• Statins: Primarily lower LDL but may slightly improve HDL and definitely reduce heart risk.
• Prescription omega-3s: Mainly lower triglycerides; any HDL rise is usually small.

Your doctor will weigh the potential benefits against side effects and interactions with other medications.

Monitoring and Follow-Up

• Get a lipid panel at least once every 4–6 years beginning at age 20 (more often if you have risk factors).
• Track your progress: If you make lifestyle changes, recheck your cholesterol in 3–6 months.
• Discuss all test results and any new or worsening symptoms with your healthcare provider.

When to Seek Medical Attention

While low HDL itself rarely causes immediate symptoms, don’t ignore warning signs of heart trouble:

• Chest pain, pressure or tightness
• Shortness of breath during routine activities
• Unexplained fatigue or fainting
• Swelling in legs or abdomen

If you experience any of these, call emergency services or go to the nearest emergency department. For non-urgent questions, speak to a doctor about your cholesterol numbers and overall heart health.

Next Steps for Your Heart Health

1. Review your most recent lipid panel.
2. Make a plan: choose two or three lifestyle changes you can start this week.
3. Consider completing a free, online symptom check, using the doctor approved Ubie Symptom Checker to clarify any concerns about your cardiovascular health.
4. Schedule a follow-up appointment to discuss your progress and any need for medication.

Remember, raising your HDL is a journey. Small, consistent steps—like taking a daily walk or swapping out refined carbs for whole grains—add up over time. Always keep an open dialogue with your healthcare provider, and never hesitate to speak to a doctor about any health concerns, especially if you suspect a heart condition or any other serious issue.