Lab results explained
Triglycerides Test Explained: What High Triglycerides Mean
Triglycerides are the most common type of fat in your blood. Your body stores extra calories as triglycerides and releases them for energy between meals. High levels are linked to heart disease, and very high levels can inflame the pancreas. This guide explains the ranges, what pushes triglycerides up, and what brings them down.
Part of Lipid panel (cholesterol test)
Typical fasting ranges at a glance
- Normal
- Below 150 mg/dL (below 1.7 mmol/L)
- Borderline high
- 150 to 199 mg/dL (1.7 to 2.2 mmol/L)
- High
- 200 to 499 mg/dL (2.3 to 5.6 mmol/L)
- Very high
- 500 mg/dL or more (5.6 mmol/L or more): raises the risk of pancreatitis
Labs report triglycerides in mg/dL or mmol/L. A non-fasting result below 175 mg/dL (2.0 mmol/L) is usually fine. Always use the reference range printed on your own report.
What are triglycerides?
When you eat more calories than you need, especially from sugar, refined carbohydrates and alcohol, your liver turns the extra into triglycerides. They travel in the blood and are stored in fat cells until your body needs energy. Levels rise after a meal and fall again over several hours, which is why the timing of the test matters.
Do I need to fast?
Many labs now accept a non-fasting lipid panel for routine checks. If your non-fasting triglycerides come back high, usually above 400 mg/dL (4.5 mmol/L), your clinician will often repeat the test after an 8 to 12 hour fast. Avoiding alcohol and a very fatty meal the day before also gives a more accurate result.
What causes high triglycerides?
Common causes are excess weight, little physical activity, a diet high in sugar, refined carbohydrates and alcohol, insulin resistance and poorly controlled diabetes. An underactive thyroid, kidney disease and some medicines, including oral estrogen, steroids, some diuretics, retinoids and certain antipsychotics, can raise them too. Some people inherit a tendency to high triglycerides.
Why very high levels need prompt care
Above about 500 mg/dL (5.6 mmol/L), and especially above 1,000 mg/dL (11.3 mmol/L), triglycerides can cause pancreatitis, an inflammation of the pancreas. Talk to your clinician soon about a result in this range. Severe pain in the upper belly that spreads to the back, often with nausea or vomiting, needs urgent care the same day.
Triglycerides and heart health
High triglycerides often come with low HDL, small dense LDL particles and insulin resistance, a pattern linked to heart disease. Clinicians read triglycerides together with LDL, HDL and non-HDL cholesterol, blood pressure and blood sugar to judge your overall heart risk.
What can lower triglycerides?
Triglycerides respond quickly to lifestyle changes. Cutting back on sugary drinks, sweets, refined carbohydrates and alcohol, losing weight if you carry extra, regular exercise and eating fish rich in omega-3 fats can lower them noticeably within weeks. If they stay high, your clinician may suggest medicine, such as a statin, a fibrate or prescription omega-3, depending on your levels and overall risk.
Frequently asked questions
Is a triglyceride level of 200 bad?
A fasting level of 200 mg/dL (2.3 mmol/L) is in the high range. It is not an emergency, but it is a sign to look at diet, alcohol, activity and weight, and to check blood sugar and the rest of the lipid panel. Many people bring it down with lifestyle changes.
How fast can triglycerides go down?
Faster than most lab values. Cutting alcohol and sugar can lower triglycerides noticeably within a few weeks. A repeat test after about 6 to 12 weeks of changes shows the effect.
Can thin people have high triglycerides?
Yes. Genes, alcohol, a diet high in sugar and refined carbohydrates, an underactive thyroid, diabetes and some medicines can raise triglycerides at any weight.
Should I take fish oil for high triglycerides?
Prescription-strength omega-3 can lower high triglycerides, but over-the-counter fish oil varies in dose and quality. Talk to your clinician before starting it, especially if you take blood thinners.
See your triglycerides next to your meals and activity
Add your results to VHT and see triglycerides alongside your other labs, meals, activity and history, and ECHNA, your AI health assistant, explains what changed in plain language.
