Disclaimer: This information is for general education only and does not replace advice from your GP or healthcare professional.
1. What are triglycerides?
Triglycerides are the most common type of fat in the body. They come from dietary fats and are also made by the liver from excess calories, especially sugar and refined carbohydrates. They are stored in fat cells and released into the bloodstream to provide energy between meals.
2. Why are triglyceride levels important for health?
High triglyceride levels increase the risk of cardiovascular disease by contributing to hardening and narrowing of the arteries. Very high levels can also cause acute pancreatitis, a serious and potentially life-threatening condition.
3. What are the standard target ranges in mmol/L?
Levels below 1.7 mmol/L are considered normal. Levels from 1.7 to 2.2 mmol/L are borderline high. Levels between 2.3 and 5.6 mmol/L are high. Levels of 5.7 mmol/L or higher are very high and require urgent medical assessment.
4. What are the main causes of high triglycerides?
Common causes include a diet high in sugar, refined carbohydrates, and alcohol, along with physical inactivity and excess weight. Medical conditions such as poorly controlled type 2 diabetes, hypothyroidism, kidney disease, and fatty liver disease can contribute. Some medications and genetic factors may also play a role.
5. Do I need to fast before a triglyceride blood test?
Non-fasting blood tests are commonly used for routine screening. If triglycerides are elevated on a non-fasting test, your doctor may request a fasting test after 9–12 hours without food to guide further management.
6. What symptoms are associated with high triglycerides?
High triglycerides usually cause no symptoms and are often detected on routine blood tests. Extremely high levels may cause fatty deposits under the skin or lead to pancreatitis, which causes severe upper abdominal pain, nausea, and vomiting.
7. How does alcohol affect triglyceride levels?
Alcohol can significantly raise triglycerides because the liver converts alcohol into fat. Even small amounts can cause large increases in some people. Reducing or stopping alcohol is often one of the most effective ways to lower triglyceride levels.
8. What lifestyle changes are most effective for lowering triglycerides?
Key measures include reducing sugar and refined carbohydrates, limiting alcohol, achieving weight loss if needed, and increasing physical activity. A diet rich in vegetables, whole grains, lean protein, and healthy fats, combined with regular aerobic exercise, can substantially improve levels.
9. When is medication needed?
Medication may be recommended if triglyceride levels remain high despite lifestyle changes or if there is a high risk of cardiovascular disease. Options may include statins, fibrates, or prescription omega-3 fatty acids, depending on the overall lipid profile and individual risk.
10. Can high triglyceride levels be reversed?
Yes. Triglyceride levels often respond well to treatment. With consistent lifestyle changes and medication when indicated, many people see significant improvement within weeks to months, with ongoing monitoring to maintain long-term control.