Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/25/2025

LDL to HDL Ratio for Men

Introduction to LDL and HDL Targets

  • The American College of Cardiology recommends focusing on absolute LDL cholesterol targets based on cardiovascular risk category, as there is no established "desirable" LDL to HDL ratio target for men, and HDL <40 mg/dL indicates increased risk 1, 2, 3

Why Ratios Are Not Primary Treatment Targets

  • The American College of Cardiology, American Heart Association, and European Society of Cardiology have moved away from using LDL/HDL ratios as primary treatment targets, instead focusing on achieving absolute LDL cholesterol goals based on total cardiovascular risk category 3, 4, 5

Absolute Thresholds That Matter

  • For HDL cholesterol in men, HDL <40 mg/dL (1.04 mmol/L) indicates increased cardiovascular risk and is one criterion for metabolic syndrome, used for risk stratification, not as a treatment target 1, 2, 3
  • Very high-risk patients (documented CVD, diabetes with target organ damage) should have LDL <70 mg/dL (1.8 mmol/L) 3
  • High-risk patients should have LDL <100 mg/dL (2.6 mmol/L) 3, 6
  • Moderate-risk patients' LDL targets are individualized based on SCORE or Framingham risk assessment 3

Clinical Approach to Low HDL in Men

  • When encountering a man with HDL <40 mg/dL, assess for secondary causes such as hyperglycemia, diabetes, hypertriglyceridemia, very low-fat diets, excess body weight, and smoking 2
  • Implement lifestyle interventions including weight loss if overweight or obese, increased physical activity, smoking cessation, and moderate alcohol consumption (if appropriate) 2, 8
  • Prioritize LDL lowering with statins as first-line pharmacotherapy, not HDL-raising agents, as statins remain the cornerstone even when low HDL is present 5, 6, 8
  • Consider fibrates only when triglycerides are markedly elevated (≥150 mg/dL) after optimizing glycemic control and lifestyle 6, 7

Important Clinical Caveats

  • Do not use HDL as a therapeutic target, as multiple trials attempting to raise HDL pharmacologically have failed to demonstrate cardiovascular benefit, despite successfully raising HDL levels 5, 9
  • The relationship between lipid ratios and risk varies by ethnicity, with black patients with metabolic syndrome potentially not exhibiting high triglycerides as commonly as other ethnic groups, affecting the interpretation of TG/HDL ratios 7

REFERENCES

7

Risks Associated with Low HDL Cholesterol [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

8

Cardiovascular Risk Assessment Using the Triglyceride-to-HDL Cholesterol Ratio [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

9

Management of Favorable Lipid Profiles [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025