Triglycerides Blood Test
What Is Triglycerides?
Triglycerides are a type of fat found in your blood. Your body uses them for energy between meals. After you eat, your body converts extra calories into triglycerides. These are stored in fat cells. When you need energy later, hormones release them into your bloodstream.
High triglycerides often signal that your metabolism needs attention. They respond quickly to what you eat and how you move. Unlike some biomarkers that are mostly genetic, triglycerides are directly influenced by daily choices. This makes them a powerful tool for understanding how your lifestyle affects your heart health.
Why Test Triglycerides?
- Assess your risk for heart disease and stroke before symptoms appear
- Catch metabolic syndrome early when lifestyle changes work best
- Monitor how diet and exercise changes affect your heart health
- Identify risk for pancreatitis when levels climb dangerously high
- Get a clearer picture of cardiovascular risk alongside cholesterol markers
- Track progress after making changes to sugar and carb intake
Normal Triglycerides Levels
| Category | Range | Interpretation |
|---|---|---|
| Optimal | Below 100 mg/dL | Lowest risk for heart disease. Indicates good metabolic health. |
| Normal | 100 to 149 mg/dL | Acceptable range but moving toward optimal is better. |
| Borderline High | 150 to 199 mg/dL | Elevated risk. Lifestyle changes strongly recommended. |
| High | 200 to 499 mg/dL | Significant cardiovascular risk. Medical evaluation needed. |
| Very High | 500 mg/dL or above | Emergency risk for pancreatitis. Requires immediate attention. |
Symptoms of Abnormal Triglycerides
High triglycerides usually cause no symptoms until levels become very high. Most people feel completely normal. This is why testing matters. When levels exceed 500 mg/dL, some people develop fatty deposits under the skin called xanthomas. Others may experience severe abdominal pain from pancreatitis. An enlarged liver or spleen can also occur. High triglycerides often exist alongside insulin resistance, fatty liver, obesity, and high blood pressure.
Low triglycerides rarely cause symptoms on their own. When symptoms appear, they typically relate to the underlying cause. Unintended weight loss, chronic diarrhea, and fatigue may occur. Signs of thyroid dysfunction can also be present. Very low levels may reflect malnutrition or trouble absorbing fats from food.
What Affects Triglycerides Levels
Diet has the biggest impact on triglycerides. Simple carbohydrates, added sugars, and refined grains raise levels quickly. Alcohol converts directly to triglycerides in the liver. Excess calories from any source get stored as fat. Eating large amounts of fruit or fruit juice can also raise levels. A sedentary lifestyle makes triglycerides climb higher.
Weight gain, especially around the midsection, drives triglycerides up. Insulin resistance and type 2 diabetes cause significant elevation. Hypothyroidism slows fat metabolism and raises levels. Some medications like steroids, beta blockers, and estrogen can increase triglycerides. Smoking, stress, and poor sleep also play a role. Genetic conditions can cause very high levels but are less common.
How to Improve Your Triglycerides
- Cut back on added sugars and sugary drinks like soda and juice
- Limit refined carbohydrates including white bread, pasta, and pastries
- Reduce or eliminate alcohol consumption
- Eat more omega-3 fatty acids from fatty fish like salmon and sardines
- Choose whole grains over processed grains
- Increase physical activity with at least 150 minutes of moderate exercise weekly
- Lose excess weight if needed, even 5 to 10 pounds can help
- Avoid trans fats and limit saturated fats
- Eat smaller portions to reduce total calorie intake
- Manage stress through sleep, relaxation, and regular routines
Related Tests
Test Your Triglycerides Levels Today
Get your Triglycerides results in 24 to 48 hours. No doctor visit needed. Order online, visit a Quest Diagnostics location near you, and receive your results securely.
- Results in 24 to 48 hours
- Over 2,000 Quest locations nationwide
- No doctor visit or appointment needed
- Secure online results you can share with your provider
Screen for 1,200+ health conditions
Start with a simple check-in, get personalized insights, explore guided care options. All in one place. Your annual health roadmap
FAQ
Normal is below 150 mg/dL according to standard guidelines. However, optimal levels for reducing heart disease risk are below 100 mg/dL. Levels between 150 and 199 mg/dL are considered borderline high. Anything above 200 mg/dL requires attention and often medical intervention.
Yes, you should fast for 8 to 12 hours before testing. Triglycerides rise significantly after eating. Testing without fasting can give falsely elevated results. Water is fine to drink during the fasting period.
Triglycerides respond quickly to lifestyle changes. Many people see improvement within 2 to 4 weeks of dietary changes. Cutting sugar and refined carbs has the fastest impact. Adding exercise and losing weight brings further reductions over several months.
Added sugars and refined carbohydrates raise triglycerides fastest. This includes soda, candy, white bread, and baked goods. Alcohol converts directly to triglycerides in your liver. Eating more calories than you burn also drives levels up regardless of food type.
Very low triglycerides are uncommon but possible. Levels below 50 mg/dL may indicate malnutrition or malabsorption problems. Hyperthyroidism can also cause low levels. If your triglycerides are unusually low, discuss possible causes with your doctor.
Both are types of fats in your blood but serve different purposes. Triglycerides store unused calories for energy later. Cholesterol builds cell membranes and makes hormones. High levels of either increase heart disease risk but through different mechanisms.
Yes, regular physical activity lowers triglycerides significantly. Aerobic exercise like walking, running, or swimming works best. Even moderate activity helps if done consistently. Aim for at least 150 minutes per week for meaningful results.
Yes, several medications can lower triglycerides when lifestyle changes are not enough. Fibrates and high-dose omega-3 prescriptions are commonly used. Statins also provide moderate reduction. Medication is usually reserved for levels above 200 mg/dL or when other risk factors exist.
Genetics play a role but lifestyle is usually more important. Some rare genetic conditions cause extremely high levels from birth. Familial hypertriglyceridemia runs in families but still responds to diet changes. Most cases result from a combination of genes and lifestyle factors.
High triglycerides and diabetes are closely connected. Insulin resistance causes your body to produce more triglycerides. High triglycerides can also worsen insulin resistance. Lowering triglycerides often improves blood sugar control and reduces diabetes risk.
Still got questions?
Our team is here to help. Call us at 863-270-9911 or email [email protected]