Triglycerides are a type of fat found in your blood — and most Canadians have never given them much thought. However, new research shows that high triglyceride levels can be a powerful and controllable risk factor for heart disease and stroke. If you have ever had a cholesterol test, your triglycerides were likely tested at the same time. Understanding what those numbers mean could make a real difference to your long-term health.
What Are Triglycerides?
Triglycerides are fatty substances your body makes from the food you eat. When you consume calories that your body does not use right away, it converts them into triglycerides and stores them in fat cells. Your body then draws on these stores for energy between meals.
Some triglycerides come directly from dietary fat. Others are made in the liver from carbohydrates and other energy sources. Certain hormones control how quickly your body releases triglycerides from fat tissue to meet your energy needs.
In short, triglycerides are your body’s way of saving extra energy for later. The problem starts when your blood carries too many of them for too long. According to Mayo Clinic’s guide on triglycerides, elevated levels are closely linked to cardiovascular disease.
What Do Triglyceride Levels Mean?
A simple blood test called a lipid panel measures your triglyceride levels. Your family doctor or a walk-in clinic can order this test. It is usually done after fasting for 9 to 12 hours. Results are measured in milligrams per decilitre (mg/dL).
Here is what the numbers mean:
Normal (optimal): Below 150 mg/dL
Borderline high: 150–199 mg/dL — your doctor will likely recommend lifestyle changes to prevent further increases
High: 200–499 mg/dL — medical attention and possible treatment are recommended
Very high: 500 mg/dL or above — this level requires urgent medical care to prevent serious complications such as pancreatitis
If your results fall in the borderline range, do not panic. This is your body’s early warning signal. Lifestyle changes at this stage can often bring your levels back to normal without medication.
What Causes High Triglycerides?
Several factors can push your triglyceride levels higher than they should be. Understanding the cause helps you choose the right solution.
Excess Weight
Carrying extra weight is the most common cause of high triglycerides. When you are overweight, your body produces too many triglycerides and burns them too slowly. As a result, they build up in the bloodstream. Even a modest weight loss of 5 to 10 per cent of your body weight can significantly lower your levels.
Diet and Refined Carbohydrates
What you eat matters enormously. Foods high in refined carbohydrates — such as white bread, pasta, and sweets — cause a rapid spike in triglycerides. Researchers believe these foods reach the liver quickly and are converted into triglycerides at a fast rate.
In contrast, fruits, vegetables, and whole grains (unrefined carbohydrates) do not cause the same sharp rise. Eating more fibre-rich foods is one of the simplest changes you can make. For more on heart-healthy eating, visit Health Canada’s healthy eating resources.
Alcohol Consumption
Even small amounts of alcohol can cause significant changes in blood triglyceride levels. Alcohol is processed by the liver and can trigger a large increase in triglyceride production. If your levels are already elevated, reducing or eliminating alcohol is one of the most effective steps you can take.
Age and Hormonal Changes
After age 40, your body produces fewer enzymes that break down triglycerides. For women, the risk increases significantly after menopause. At this stage, weight tends to shift toward the abdomen, oestrogen levels fall, and both LDL cholesterol and triglycerides tend to rise. This combination raises cardiovascular risk considerably.
Genetic Factors
Most cases of high triglycerides are not genetic. However, some people have inherited conditions that affect how the liver processes fats. It is estimated that about 1 in 500 people with high cholesterol or triglycerides have a genetic cause. If you are diagnosed with such a condition, it is worth encouraging close family members to get tested as well.
Certain Medications
Some commonly prescribed medications can raise triglyceride levels as a side effect. These include oral oestrogens, certain blood pressure medications (such as beta-blockers and diuretics), some acne treatments, corticosteroids, and certain anti-inflammatory drugs. If you are taking any of these, speak with your doctor about monitoring your lipid levels regularly.
Why High Triglycerides Are Dangerous
High triglycerides are not just a number on a lab report. They can have real physical consequences for your heart and blood vessels.
When triglyceride levels stay high over time, excess fat can coat the inner walls of your blood vessels. If this fatty build-up breaks loose, it can travel through the bloodstream and cause a blockage. That blockage can cut off blood supply to part of the heart — causing a heart attack — or to the brain, causing a stroke.
Furthermore, cardiologists now know that high triglycerides can trigger a heart attack or stroke even when cholesterol levels appear normal. This is why triglycerides deserve attention on their own, not just as part of a cholesterol panel.
Triglycerides and Metabolic Syndrome
High triglycerides are also a key marker of metabolic syndrome, sometimes called Syndrome X. This is a cluster of health problems that together sharply raise your risk of heart disease and type 2 diabetes. Metabolic syndrome includes:
High triglycerides
High LDL (bad) cholesterol
High blood pressure
Early-onset type 2 diabetes
Abdominal obesity (excess belly fat)
Research suggests that nearly one in four adult women may have metabolic syndrome without knowing it. If you have several of these risk factors, talk to your family doctor about getting a full assessment. The World Health Organization explains how cardiovascular risk factors interact and why early detection matters.
Are Women at Greater Risk?
Yes — studies show that high triglycerides appear to be more dangerous in women than in men. The risk is especially high after menopause, when protective oestrogen levels decline. Women who notice weight gain around the abdomen after menopause should ask their doctor about a lipid panel.
How to Lower Your Triglycerides Naturally
The good news is that lifestyle changes are highly effective for lowering triglycerides. For most people, these changes are the first — and sometimes the only — treatment needed.
Eat a Heart-Healthy Diet
Focus on reducing saturated fats and replacing them with healthier mono- and polyunsaturated fats. Cut back on refined carbohydrates and sugary drinks. Instead, choose whole grains, legumes, and plenty of vegetables. Increasing your dietary fibre also helps slow the absorption of fats and sugars.
Reach a Healthy Weight
If you are overweight, reducing your total calorie intake is one of the most impactful steps. This means watching all sources of calories — fats, proteins, carbohydrates, and alcohol. You do not need to reach a “perfect” weight; even a modest reduction can bring meaningful improvements.
Get Regular Physical Activity
Aim for at least 30 minutes of moderate physical activity on most days of the week. Exercise helps your muscles burn triglycerides that would otherwise stay in the bloodstream. Activities like brisk walking, swimming, or cycling all count. Most triglycerides enter your blood 3 to 6 hours after a meal and are burned or stored within 10 to 12 hours — so regular movement makes a real difference.
Reduce Alcohol Intake
If your triglycerides are elevated, cutting back on alcohol is one of the fastest ways to see improvement. Even reducing to occasional moderate drinking can have a measurable effect on your blood lipid levels.
Review Your Medications
If you are taking medications that may raise triglycerides, do not stop them without medical advice. Instead, speak with your doctor about whether alternatives are available or whether your lipid levels need closer monitoring.
When to See a Doctor
You should ask your family doctor for a lipid panel — which includes triglyceride testing — if you are over 40, if you have a family history of heart disease, or if you have been diagnosed with diabetes, obesity, or high blood pressure. Many provincial health plans in Canada cover this test as part of routine preventive care.
If you do not have a family doctor, a walk-in clinic can often arrange blood work and discuss your results with you. Do not wait for symptoms — high triglycerides cause no obvious signs until serious damage has already occurred.
If your levels are very high (above 500 mg/dL), seek medical attention promptly. At this level, there is a risk of acute pancreatitis, a painful and potentially life-threatening condition. Your doctor may recommend prescription medication in addition to lifestyle changes.
Always speak with a qualified healthcare provider before making significant changes to your diet, exercise routine, or medications. This article is for general information only and is not a substitute for professional medical advice.
Frequently Asked Questions About Triglycerides
What is a normal triglyceride level in Canada?
A normal triglyceride level is below 150 mg/dL. Levels between 150 and 199 mg/dL are considered borderline high, and your doctor will likely suggest lifestyle changes. Levels above 200 mg/dL are considered high and may require medical treatment.
Can high triglycerides cause a heart attack?
Yes — high triglycerides can contribute to the build-up of fatty deposits inside blood vessel walls. If this build-up breaks loose, it can block blood flow to the heart or brain, causing a heart attack or stroke. Importantly, high triglycerides can raise your risk even when your cholesterol levels appear normal.
What foods raise triglycerides the most?
Refined carbohydrates — such as white bread, pasta, sugary snacks, and sweet drinks — tend to raise triglycerides the most. Alcohol is also a significant contributor. Whole grains, vegetables, fruits, and foods rich in fibre have a much smaller effect on triglyceride levels.
How quickly can lifestyle changes lower triglycerides?
Many people see meaningful reductions in their triglyceride levels within four to eight weeks of making consistent dietary changes, increasing physical activity, and reducing alcohol intake. However, results vary depending on your starting level and overall health. Your doctor can retest your levels after a few months to track progress.
Are triglycerides the same as cholesterol?
No — triglycerides and cholesterol are both types of fat (lipids) found in the blood, but they are different substances with different roles. Cholesterol is used to build cells and certain hormones, while triglycerides store unused calories for energy. Both are measured in a standard lipid panel blood test.
Do I need a prescription to get my triglycerides tested in Canada?
In most provinces, you need a requisition from a doctor or nurse practitioner to get a blood test for triglycerides. Your family doctor or a walk-in clinic can provide this. The test is generally covered by provincial health insurance plans as part of routine cardiovascular or metabolic screening.
Key Takeaways
Triglycerides are fats in your blood made from excess calories your body stores for energy.
A normal triglyceride level is below 150 mg/dL. Levels above 200 mg/dL are considered high and need attention.
High triglycerides raise your risk of heart attack and stroke — even when cholesterol is normal.
The most common causes include excess weight, refined carbohydrates, alcohol, age, and certain medications.
Women face a higher risk after menopause due to hormonal changes and shifting fat distribution.
Lifestyle changes — healthy eating, regular exercise, weight loss, and reduced alcohol — are the first line of treatment.
Ask your family doctor or walk-in clinic for a lipid panel, especially if you are over 40 or have other cardiovascular risk factors.
Always consult a healthcare professional before changing your diet, exercise habits, or medications.
