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Total Cholesterol to HDL Ratio (TC:HDL)

Total Cholesterol to HDL Ratio (TC:HDL)

The Total Cholesterol to HDL ratio (TC:HDL) compares the total amount of cholesterol in your blood (TC) to the amount carried by HDL, often called “good” cholesterol.

Measuring HDL against TC helps physicians estimate how much cholesterol may contribute to plaque buildup in the arteries versus how much is being cleared away.

Biomarkers Heart Health Total Cholesterol to HDL Ratio (TC:HDL)

What is the Total Cholesterol to HDL Ratio?  

The Total Cholesterol to HDL ratio is calculated by dividing your total cholesterol by your HDL cholesterol, with a higher ratio indicating an increased risk for cardiovascular disease.

  • Total cholesterol: The combined amount of cholesterol carried by different lipoproteins in the blood, including LDL, HDL, and other cholesterol-containing particles.
  • HDL cholesterol: Often called “good” cholesterol because 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.

Doctors look at the TC/HDL ratio alongside LDL, ApoB, triglycerides, inflammatory markers, and overall metabolic health.

Why Does Total Cholesterol to HDL Ratio Matter? 

  • Reflects the balance between harmful and protective cholesterol particles
  • Helps estimate long-term cardiovascular risk
  • Provides insight into metabolic and heart health
  • Often offers more useful cardiovascular risk information than total cholesterol alone

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How to Interpret Total Cholesterol to HDL Ratio 

Men:
Optimal Range: <3.4
Standard Lab Reference Range: <5.0
Women:
Optimal Range: <3.3
Standard Lab Reference Range: <4.5

(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.

What a Healthy Total Cholesterol to HDL Ratio Suggests 

  • A favorable balance between protective HDL and total cholesterol
  • Lower likelihood of plaque buildup in the arteries
  • Better cardiometabolic health
  • Lower long-term cardiovascular risk

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Low TC/HDL

A lower TC/HDL ratio is generally considered favorable and reflects higher HDL relative to total cholesterol, which is associated with lower cardiovascular risk.

High TC/HDL

A high TC/HDL ratio means total cholesterol is elevated relative to HDL, which may indicate increased cardiovascular risk. The ratio itself does not cause symptoms. However, persistently abnormal cholesterol patterns may contribute to cardiovascular disease over time, which can lead to symptoms.

Symptoms

  • Shortness of breath 
  • Fatigue
  • Dizziness 
  • Chest pain (angina) 
  • Reduced exercise tolerance

Causes: 

  • Sedentary lifestyle 
  • Diet high in processed foods, refined carbohydrates, and unhealthy fats
  • Smoking 
  • Diabetes
  • Kidney or liver disease 
  • Heavy alcohol consumption
  • Certain medications (e.g., steroids, oral contraception

Healthspan Impacts: 

  • Increased risk of atherosclerosis, which can increase the risk of heart attacks, stroke, and peripheral arterial disease 
  • Higher cardiovascular mortality1
  • Linked to insulin resistance and type 2 diabetes2
  • Increased risk of dementia3

How Hone Treats Out of Range Total Cholesterol to HDL Ratio

Your Hone physician will evaluate the TC/HDL ratio alongside your full lipid panel, triglycerides, fasting glucose, inflammatory markers to understand your overall cardiovascular risk. Because this ratio reflects underlying metabolic and cardiovascular health, treatment focuses on improving the overall lipid profile and cardiometabolic health.

  • Statins (e.g. Rosuvastatin) – primarily to lower LDL cholesterol and reduce cardiovascular risk
  • Cholesterol absorption inhibitors (e.g.  Ezetimibe) – to reduce total and LDL cholesterol
  • Estradiol – to increase HDL cholesterol and lower LDL cholesterol in women experiencing symptoms of menopause
  • GLP-1 receptor agonists — to lower triglycerides and ApoB which contribute to total cholesterol 
  • Fibrates* – primarily to lower triglycerides and modestly improve HDL levels

    *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.
  • Bergamot
  • Psyllium husk4
  • Omega-3 fatty acids5
  • Berberine6
  • Red yeast rice7

  1. Zhou, D., et al. (2022). The effect of total cholesterol/high-density lipoprotein cholesterol ratio on mortality risk in the general population. Frontiers in Endocrinology.

  2. Jeppesen, J., Facchini, F. S., & Reaven, G. M. (1998). Individuals with high total cholesterol/HDL cholesterol ratios are insulin resistant. Journal of internal medicine.

  3. Zhou, Y., et al. (2025). The nonlinear association of ratio of total cholesterol to high density lipoprotein with cognition ability: Evidence from a community cohort in China. Frontiers in Nutrition.

  4. Gholami, Z., & Paknahad, Z. (2025). Psyllium supplementation and lipid profiles: Systematic review and dose-response meta-analysis of randomized controlled trials. Genes & Nutrition.

  5. Conti Cartolano, F. D., Dias, G. D., Miyamoto, S., & Teixeira Damasceno, N. R. (2022). Omega-3 Fatty Acids Improve Functionality of High-Density Lipoprotein in Individuals With High Cardiovascular Risk: A Randomized, Parallel, Controlled and Double-Blind Clinical Trial. Frontiers in Nutrition.

  6. Cai, Y., Xin, Q., Lu, J., Miao, Y., Lin, Q., Cong, W., & Chen, K. (2021). A New Therapeutic Candidate for Cardiovascular Diseases: Berberine. Frontiers in Pharmacology.

  7. Li, P., et al. (2022). Red Yeast Rice for Hyperlipidemia: A Meta-Analysis of 15 High-Quality Randomized Controlled Trials. Frontiers in Pharmacology.

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.

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.

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.

Hone’s Testing Process

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Related Heart Health Biomarkers

LDL to ApoB ratio

LDL to ApoB ratio

The LDL-to-ApoB ratio compares total LDL cholesterol against the number of particles carrying it, revealing whether LDL is made up of larger, less harmful particles or smaller, more dangerous ones. A lower ratio can indicate a higher concentration of small dense LDL particles, which carry greater risk of heart disease.

Learn More About LDL to ApoB ratio
Triglyceride to HDL ratio (TG:HDL)

Triglyceride to HDL ratio (TG:HDL)

The Triglyceride-to-HDL ratio reflects the balance between harmful circulating fats and protective cholesterol in the blood. Elevated ratios are strongly associated with insulin resistance, metabolic dysfunction, and increased risk of heart disease.

Learn More About Triglyceride to HDL ratio (TG:HDL)
Neutrophil to Lymphocyte Ratio (NLR)

Neutrophil to Lymphocyte Ratio (NLR)

The NLR measures the relationship between neutrophils and lymphocytes in the blood, offering insight into systemic inflammation and immune balance. Research increasingly associates elevated NLR with higher cardiovascular risk.

Learn More About Neutrophil to Lymphocyte Ratio (NLR)
Non-HDL Cholesterol

Non-HDL Cholesterol

Non-HDL cholesterol measures all the “bad” cholesterol in your blood, including LDL and other harmful particles that can contribute to plaque buildup in your arteries.

Learn More About Non-HDL Cholesterol
Apolipoprotein B (ApoB)

Apolipoprotein B (ApoB)

ApoB measures the main protein found in LDL and other “bad” cholesterol particles that can build up as plaque in your arteries. It provides a more accurate view of cardiovascular risk by counting the number of these harmful particles, not just the cholesterol they carry.

Learn More About Apolipoprotein B (ApoB)
LDL Cholesterol

LDL Cholesterol

LDL (“bad”) cholesterol carries cholesterol through your bloodstream, but when levels get too high, it can build up in your arteries as plaque, narrowing blood flow and increasing the risk of heart attack and stroke.

Learn More About LDL Cholesterol
HDL Cholesterol

HDL Cholesterol

HDL cholesterol is known as “good” cholesterol because it removes cholesterol from artery walls and helps keep blood vessels clear, reducing the risk of heart disease and stroke.

Learn More About HDL Cholesterol
Triglycerides

Triglycerides

Triglycerides are fats in your blood that your body uses for energy, but high levels can build up from excess calories and increase the risk of heart disease, stroke, and pancreatitis.

Learn More About Triglycerides
Total Cholesterol

Total Cholesterol

Total cholesterol measures the total amount of cholesterol in your blood, including LDL and HDL. Levels help determine whether you’re at high risk for heart disease.

Learn More About Total Cholesterol