High triglycerides

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
A medical finding, review with a doctor

High triglycerides are strongly tied to sugar, refined carbs, and alcohol, and respond well to diet plus omega-3, though a very high level needs a doctor.

Triglycerides are fats in the blood that rise with excess sugar, refined carbohydrate, and alcohol, and high levels add to cardiovascular and, when very high, pancreatitis risk. Omega-3 fish oil reliably lowers them, and dietary change is powerful.

Common causes

  • High sugar and refined-carb intake
  • Alcohol
  • Excess body weight
  • Poorly controlled blood sugar
  • Underactive thyroid

Associated symptoms

  • Usually none
  • Very high levels can cause abdominal pain

Nutrients that can help

Omega-3 Fish Oil
See the guide →
What to do

Cut sugar, refined carbs, and alcohol, lose excess weight, and add omega-3, which together can move triglycerides substantially. Recheck after a few months.

When to see a doctor

Very high triglycerides need prompt medical review (pancreatitis risk), and any management fits into your wider heart-health plan with a doctor.

Full marker
Triglycerides: ranges, what it measures & both directions
Read the Triglycerides guide →

Common questions

What does high triglycerides mean?
High triglycerides are strongly tied to sugar, refined carbs, and alcohol, and respond well to diet plus omega-3, though a very high level needs a doctor. Triglycerides are fats in the blood that rise with excess sugar, refined carbohydrate, and alcohol, and high levels add to cardiovascular and, when very high, pancreatitis risk. Omega-3 fish oil reliably lowers them, and dietary change is powerful.
What causes high triglycerides?
High sugar and refined-carb intake; Alcohol; Excess body weight; Poorly controlled blood sugar; Underactive thyroid.
How do I lower my triglycerides?
Cut sugar, refined carbs, and alcohol, lose excess weight, and add omega-3, which together can move triglycerides substantially. Recheck after a few months.
When should I see a doctor?
Very high triglycerides need prompt medical review (pancreatitis risk), and any management fits into your wider heart-health plan with a doctor.

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Educational use only, not medical advice or diagnosis. Reference ranges vary by lab, age, sex, and medication, and a single result is read in context. Always review your results with a qualified clinician.