Lipid panel · Triglycerides

What do triglycerides mean on your blood test?

Triglycerides are a type of fat that your body uses for energy. A high level, often alongside cholesterol changes, can raise your risk of heart disease. Here is how to read your number.

Normal
Less than 150
mg/dL
Borderline high
150–199
mg/dL
High
200–499
mg/dL
Very high
500 and above
mg/dL

What triglycerides are

Triglycerides are the most common type of fat in your body. When you eat, your body converts calories it does not need right away into triglycerides and stores them in fat cells, then releases them for energy later. A triglycerides test is usually part of a lipid panel and is measured in mg/dL.

How to read your triglycerides

You will often be asked to fast before this test, because eating can raise triglycerides temporarily. A normal fasting level is generally under 150 mg/dL. Higher readings, especially together with high LDL or low HDL, add to your heart-disease risk picture. Your clinician reads the whole panel together.

What a high level can mean

High triglycerides can be linked to excess weight, physical inactivity, a diet high in refined carbohydrate or alcohol, type 2 diabetes, and some genetic conditions. Very high levels can also affect the pancreas. A single high reading is a signal to look further, not a diagnosis.

See your own triglycerides explained

Upload your lipid panel and Mednex reads triglycerides alongside your cholesterol, in plain language, and tracks the trend for your next draw.

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Common questions

Do I need to fast before a triglycerides test?
Often yes. Because eating raises triglycerides for a while, many labs ask you to fast beforehand so the result reflects your baseline. Follow the instructions from the clinician or lab that ordered the test.
What is a high triglyceride level?
A fasting level under 150 mg/dL is generally considered normal. 150–199 is borderline high, 200–499 is high, and 500 mg/dL and above is very high. Your clinician interprets this together with the rest of your lipid panel.
Are triglycerides the same as cholesterol?
No, they are different fats, but they are measured together on a lipid panel and both contribute to your heart-disease risk. High triglycerides often occur alongside cholesterol changes.

Sources

  1. MedlinePlus [Internet]. Bethesda (MD): National Library of Medicine (US); Triglycerides Test; [cited 2026 Jul 9]. Available from: https://medlineplus.gov/lab-tests/triglycerides-test/
  2. MedlinePlus [Internet]. Bethesda (MD): National Library of Medicine (US); Cholesterol Levels; [cited 2026 Jul 9]. Available from: https://medlineplus.gov/lab-tests/cholesterol-levels/

Content last reviewed 9 July 2026. Reference ranges vary by laboratory; always read your results against the range printed on your own report.

This page explains a common lab marker in general terms using public information from the U.S. National Library of Medicine and other NIH sources. It is educational and is not a diagnosis or medical advice. Reference ranges differ between laboratories and the meaning of a result depends on your age, sex, medications, and overall health. Always discuss your own results with the clinician who ordered them.