What is the Triglyceride to HDL Ratio?
The triglyceride/HDL ratio is calculated by dividing your fasting triglycerides by your HDL (“good”) cholesterol level and is widely used as a practical surrogate marker for insulin resistance and cardiometabolic dysfunction.
- Triglycerides are fats formed when your body converts excess calories — especially from sugars, refined carbohydrates, alcohol, or dietary fats — into stored energy.
- High-density lipoprotein (HDL) is a particle that transports cholesterol through the bloodstream. It transports “bad” low-density lipoprotein (LDL) cholesterol that can build up in artery walls to the liver, where it can be broken down and eliminated.
The TG:HDL ratio can signal problems with how the body handles sugar and fats. When the body becomes insulin resistant, the liver produces more triglyceride-rich particles that circulate in the blood. At the same time, HDL levels often fall and cholesterol particles become smaller and denser, a pattern linked to a higher risk of heart disease.
TG:HDL ratio often becomes abnormal years before fasting glucose or hemoglobin A1c rise, or diabetes develops.
Why Does the Triglyceride to HDL Ratio Matter?
- Serves as an early marker of insulin resistance, metabolic dysfunction, and future cardiovascular disease
- Identifies risk for metabolic syndrome or prediabetes, even when other markers like LDL cholesterol and body mass index (BMI) are in the normal range
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How to Interpret Triglyceride to HDL Ratio
(Ranges may vary slightly by lab)
Standard reference ranges represent the middle 95% of healthy individuals but don’t necessarily reflect levels associated with longevity. Optimal ranges are derived from clinical guidelines, peer-reviewed research, and real-world outcomes data, with an emphasis on levels associated with peak functioning and reduced disease risk.
Benefits of Optimizing Triglyceride to HDL Ratio
- Lower risk of cardiovascular disease, including heart attack and stroke
- Improved insulin sensitivity and lower risk of type 2 diabetes
- Healthier cholesterol particle patterns, including fewer small, dense LDL particles
- Better overall metabolic health and reduced cardiometabolic risk
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Low Triglyceride to HDL Ratio Levels
A lower TG:HDL ratio is generally associated with better insulin sensitivity, metabolic health, and cardiovascular health.
High Triglyceride to HDL Ratio Levels
High triglyceride-to-HDL ratios are commonly associated with insulin resistance, metabolic syndrome, and increased cardiovascular risk.
Symptoms:
- Usually asymptomatic
- Increased abdominal fat
- Fatigue or low energy
- High blood pressure
- Elevated blood sugar or prediabetes
- Post-meal fatigue/crashes
- Elevated fasting insulin patterns
Causes:
- Insulin resistance and metabolic syndrome
- Diet high in sugar and refined carbohydrates
- Excess body fat, particularly abdominal fat
- Sedentary lifestyle and low physical activity
- Excess alcohol consumption
- Poorly controlled diabetes
- Certain medications (such as corticosteroids or some beta blockers)
- Genetic lipid disorders
- Sleep deprivation
- Chronic stress
Healthspan Impacts:
How Hone Treats Out of Range Triglyceride to HDL Ratio
Your Hone physician will evaluate the triglyceride to HDL ratio alongside your full lipid panel, glucose markers, body composition, and overall health. Because this ratio often reflects underlying metabolic dysfunction, treatment focuses on improving triglyceride levels, raising HDL when possible, and addressing insulin resistance or other contributing factors.
- Statins (e.g Rosuvastatin) — to lower triglycerides and reduce cardiovascular risk
- Metformin — to lower triglycerides and improve glucose regulation
- GLP-1 receptor agonists — to improve metabolic health and reduce triglycerides
- Estradiol– to increase HDL cholesterol and lower LDL cholesterol in some peri- and postmenopausal women
- Fibrates* — to significantly lower high triglycerides
- Insulin therapy* — to rapidly lower triglycerides in severe cases
*Your Hone Physician does not prescribe these treatments but will recommend further evaluation and help coordinate care with your primary care provider when medical treatment is indicated.
- Reduce intake of sugar and refined carbs
- Prioritize regular aerobic exercise and resistance training
- Replace refined carbohydrates and processed fats with minimally processed healthy fats such as olive oil, avocados, and fatty fish
- Increase dietary fiber intake to around 30g/day6
- Maintain a healthy weight
- Limit alcohol consumption
Park, B., et al. (2021). Triglyceride to HDL-Cholesterol Ratio and the Incident Risk of Ischemic Heart Disease Among Koreans Without Diabetes: A Longitudinal Study Using National Health Insurance Data. Frontiers in Cardiovascular Medicine.
↑Luca, G. D., et al. (2025). Triglycerides/High-Density Lipoprotein Ratio and Coronary Artery Disease: Results from a Large Single-Center Study. Journal of Clinical Medicine.
↑Kosmas, C. E., et al. (2023). The Triglyceride/High-Density Lipoprotein Cholesterol (TG/HDL-C) Ratio as a Risk Marker for Metabolic Syndrome and Cardiovascular Disease. Diagnostics.
↑Skulas-Ray, A. C., et al. (2019). Omega-3 Fatty Acids for the Management of Hypertriglyceridemia: A Science Advisory From the American Heart Association. Circulation.
↑Liu, Z., et al. (2022). Effects of Coenzyme Q10 Supplementation on Lipid Profiles in Adults: A Meta-analysis of Randomized Controlled Trials. The Journal of clinical endocrinology and metabolism.
↑Zhou, Q., et al. (2015). Beneficial Effect of Higher Dietary Fiber Intake on Plasma HDL-C and TC/HDL-C Ratio among Chinese Rural-to-Urban Migrant Workers. International Journal of Environmental Research and Public Health.
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Reviewed for Accuracy by Our Medical Review Board
This biomarker information has been reviewed by a member of Hone’s medical review board. As part of the medical review team, physicians fact-check this content against the latest research and their own experience treating their patients.
Ashley Winter, M.D., is a board-certified urogynecologist trained at Weill Cornell and Cleveland Clinic. She specializes in female and male sexual dysfunction, urinary issues, genital pain, and hormone therapy.
James Staheli, D.O., is the Medical Director for Broad Health, Hone Health’s affiliated medical practice and a family medicine doctor in Atlanta, Georgia.
