Is my Triglycerides normal?
Free blood test checker · Standard + longevity-optimal ranges
What is a normal Triglycerides level?
Triglycerides are the most common type of fat in your blood. After eating, your body converts excess calories into triglycerides stored in fat cells. Normal is below 150 mg/dL, but longevity physicians target below 100 mg/dL. High triglycerides combined with low HDL is a hallmark of metabolic syndrome.
| Range | Values |
|---|---|
| Standard Reference | 0–150 mg/dL |
| Optimal | 0–100 mg/dL |
| Longevity Optimal | < 100 mg/dL |
| High Risk | > 500 mg/dL |
What causes abnormal Triglycerides levels?
High triglycerides are most commonly caused by excess refined carbohydrate and sugar intake, alcohol consumption, obesity, sedentary lifestyle, uncontrolled type 2 diabetes, hypothyroidism, kidney disease, and certain medications (corticosteroids, estrogen, some blood pressure drugs). Genetics also play a role in familial hypertriglyceridemia.
When should you see a doctor?
See your doctor if triglycerides are above 200 mg/dL, or above 150 mg/dL with other metabolic risk factors. Triglycerides above 500 mg/dL require urgent attention due to pancreatitis risk. Fasting is required for accurate testing — 12 hours without food or alcohol.
Triglycerides and longevity
The triglyceride-to-HDL ratio is one of the most powerful surrogate markers of insulin resistance. A ratio above 3.5 (triglycerides/HDL in mg/dL) strongly correlates with small, dense LDL particles — the most atherogenic subtype. Longevity physicians use this ratio as a quick metabolic health screen: below 1.0 is optimal, 1.0-2.0 is acceptable, above 3.5 signals significant metabolic dysfunction. High triglycerides are primarily driven by excess carbohydrate intake (not dietary fat), fructose consumption, and insulin resistance. Reducing refined carbs and sugar often produces dramatic triglyceride drops of 30-50% within weeks.
Where to get a Triglycerides test
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Related biomarkers
These biomarkers are often tested alongside Triglycerides for a more complete picture.
Frequently asked questions
What is a normal triglyceride level?
What causes high triglycerides?
How do I lower triglycerides?
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Sources: Reference ranges based on AHA/ACC, ADA, and AACE clinical guidelines. Biological variation data from Ricos/Westgard database. Longevity-optimal ranges reflect targets used by preventive and functional medicine practitioners.
Last reviewed: April 2026. This tool provides general health information and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider about your specific results.