High Triglycerides: What Your Number Means and What To Do

TL;DR: A triglyceride level under 150 mg/dL is normal. From 150 to 499 mg/dL, diet, activity, and weight loss come first. Fishtown Medicine also estimates your 10-year heart risk to decide whether a statin belongs in the plan. From 500 to 999 mg/dL, the plan expands to protect your pancreas as well as your heart. Alcohol comes off the table, and a triglyceride-lowering medication becomes a reasonable next step. At 1000 mg/dL or higher, the risk of acute pancreatitis is urgent enough that fat intake drops sharply and medication is standard. Triglycerides respond to change faster than almost any other number on your panel.

A high triglyceride result is one of the more confusing calls a patient gets. The advice seems to change depending on who you ask and how high the number runs. That is not inconsistency. Triglycerides get managed differently at different levels because the risk they represent changes as the number climbs. At 180 mg/dL, the concern is mostly your arteries over the next 10 years. At 1800 mg/dL, the concern is your pancreas this month. Each situation calls for its own plan.

What Counts as a High Triglyceride Level?

A fasting triglyceride level under 150 mg/dL is normal. 150 to 499 mg/dL is high, 500 to 999 mg/dL is severe, and 1000 mg/dL or higher is very severe. Each band changes the plan.

Here is where the 4 working bands sit, following the current national guideline on managing cholesterol and triglycerides:¹

• Under 150 mg/dL: normal.
• 150 to 499 mg/dL: high. The main concern is heart risk. Diet, activity, and weight all move this number, and a statin often belongs in the conversation.
• 500 to 999 mg/dL: severe hypertriglyceridemia. Heart risk still matters, and a second concern joins it: the pancreas. Alcohol comes off the table, and medication becomes a reasonable option early in the conversation.
• 1000 mg/dL or higher: very severe. The risk of acute pancreatitis, a sudden and painful swelling of the pancreas, is high enough that this gets treated with urgency. Diet changes get strict, and medication is standard.

One detail matters for how you read your own labs: you do not always need a fasting sample to act on this. The guideline treats a fasting triglyceride of 150 mg/dL or higher the same as a nonfasting triglyceride of 175 mg/dL or higher.¹ A high nonfasting result is worth acting on just the same as a fasting one.

Why Do Triglycerides Matter for Your Heart?

High triglycerides travel inside particles called VLDL. Your liver breaks these down into smaller, cholesterol-loaded remnant particles that build plaque in your arteries much the way LDL does.

Triglycerides themselves are just a fat your body uses for energy. The reason a high number matters for your heart is what carries them. Your liver packages triglycerides into particles called VLDL (very-low-density lipoprotein). As those particles travel through your blood and drop off their triglycerides to your tissues, they shrink into smaller leftovers called remnant particles. Those remnants are small enough to burrow into your artery wall and start plaque, the same basic process LDL drives. You can read the full mechanism in our guide to remnant cholesterol. It also walks through how to calculate your own remnant cholesterol for free from a standard lipid panel.

This is also why triglycerides and ApoB travel together so often. ApoB counts every particle that can cause plaque, VLDL and its remnants included. Someone with high triglycerides very often has a high ApoB even when their LDL cholesterol looks normal on its own. High triglycerides are often the visible clue that a standard cholesterol panel is missing something.

What Should You Change If Your Triglycerides Are 150 to 499 mg/dL?

At this level, the guideline calls for a diet lower in added sugar, refined carbs, and saturated fat, with alcohol kept low. Add 150 minutes a week of activity and a 5 to 10% weight loss if you carry extra weight. Fishtown Medicine also estimates your 10-year heart risk to decide whether a statin belongs in the plan.

This band is the one most people land in, and it responds well to changes you control directly.

Diet. The guideline calls for a diet that is low in added sugar, refined carbs, and saturated fat, with alcohol kept low.¹ In practice, sugary drinks, refined grains, and fried food are the main levers to pull first. A Mediterranean-style pattern built around vegetables, fish, olive oil, and whole grains does well here. It also has independent evidence for lowering heart events, not triglycerides alone.

Activity and weight. The same activity and weight targets apply at every triglyceride level, so you do not need to wait for a worse number to start. Aim for 150 minutes a week of moderate activity, or 75 minutes of vigorous activity, plus 2 days a week of strength training. Losing 5 to 10% of your body weight if you carry extra weight also makes a big difference.¹ Even a modest weight drop moves this number faster than almost any other lab.

Statin therapy. A statin has a role here too, beyond treating high LDL. In this band, the guideline recommends estimating your 10-year ASCVD risk with the PREVENT equations.¹ PREVENT is the current standard that replaced the older Pooled Cohort Equations and helps decide whether starting or stepping up a statin makes sense. A statin will not dramatically fix your triglycerides on its own. What it does is lower ApoB and the heart risk that travels alongside high triglycerides, which is often the bigger prize.

What Changes at 500 mg/dL, and Why Does Medication Come In?

Above 500 mg/dL, the enzyme that clears triglyceride-rich particles starts to get overwhelmed, which raises the risk of acute pancreatitis. Alcohol comes off the table, total fat gets a personal daily limit, and a fibrate or prescription omega-3 becomes a reasonable option alongside a statin.

Something mechanical changes around this number. The enzyme that clears triglyceride-rich particles from your blood, called lipoprotein lipase, has a limited capacity. Somewhere between 500 and 700 mg/dL, that capacity starts to get saturated. Triglyceride-rich particles back up in your blood, a state called chylomicronemia.¹ That backup is what raises the risk of acute pancreatitis, so the conversation expands beyond your heart at this point.

Diet stays low in added sugar, refined carbs, and saturated fat, but 2 things change. Alcohol is stopped instead of just cut back, and total fat gets a personal limit instead of a general move toward better sources.¹

Medication becomes a reasonable option at this stage, discussed early instead of held in reserve. A fibrate or a prescription omega-3 can lower triglycerides by roughly a third to a half.¹ Fenofibrate is generally preferred over gemfibrozil, which carries a higher risk of muscle problems when paired with a statin. Fibrates and prescription omega-3s are added here mainly to bring the triglyceride number down and lower pancreatitis risk. They have not reliably shown the same drop in heart attacks and strokes that statins have. Statins remain the foundation for heart risk reduction even in this band, even though they lower triglycerides by less than a fibrate would.¹ The 2 medications are solving 2 different problems: one for your pancreas, one for your arteries.

One specific prescription omega-3, icosapent ethyl, does have its own heart-outcomes trial evidence. However, that trial enrolled people with triglycerides under 500 mg/dL on a statin, so the same evidence does not directly cover this band. It is still a reasonable choice for bringing the number itself down here. We cover the trial and the debate around it in our guide to icosapent ethyl (Vascepa).

What About 1000 mg/dL or Higher?

Above 1000 mg/dL, dietary fat drops sharply, alcohol and added sugar stop, and treatment is urgent because acute pancreatitis risk is much higher.

This is not a common number. When it shows up, it usually means your blood is carrying an excess of chylomicrons, the largest triglyceride-carrying particles, because the system that clears them is overwhelmed. The guideline is direct about this: the risk of acute pancreatitis is much higher at triglycerides of 1000 mg/dL or above.¹

The diet gets strict quickly: very low total fat, very low refined carbs, and no alcohol or added sugar.¹ For some patients, total fat is limited to as little as 10 to 15% of daily calories. A limit that strict needs dietitian guidance to do safely while still eating enough.

A small number of people at this level have a rare genetic condition called familial chylomicronemia syndrome, or FCS, where the enzyme that clears triglycerides barely works at all. FCS matters here because it changes the plan. Standard triglyceride medications do little for it, since they depend on the same enzyme pathway that is broken. A newer medication called olezarsen works differently. It lowers a liver protein called ApoC-III that normally holds back your body's ability to clear triglycerides, so it can still help even when the main clearing enzyme does not work. It is now approved specifically for FCS. In the trial that supported its approval, it lowered triglycerides by roughly 44% against placebo, with fewer pancreatitis episodes along the way.¹ If your numbers are this high and standard treatment is not moving them, that possibility is worth raising directly.

Guidance from the Clinic

"Triglycerides move faster than almost any other number on your panel. They respond directly to what you ate this week, how much you moved, and how much you drank. That makes this one of the more hopeful numbers to work on. It is in your hands, and it responds quickly enough that you get to see the reward for your effort without waiting years. What I want people to hear, at the higher numbers most of all, is that a high triglyceride level is not a verdict. It is a signal that tells us where to push, and pushing there usually works."

When Should You See a Doctor About High Triglycerides?

Sudden, severe belly pain, particularly with nausea or vomiting, needs same-day care if your triglycerides are high, because it can signal acute pancreatitis. A triglyceride result of 500 mg/dL or higher deserves a prompt visit, and 1000 mg/dL or higher deserves an urgent one.

A few situations call for action before your next scheduled visit:

• Severe, steady pain in the upper belly that radiates to your back, paired with nausea or vomiting. Alongside a known high triglyceride level, this is the classic presentation of acute pancreatitis and needs same-day care.
• A new triglyceride result of 500 mg/dL or higher. This does not require an emergency room visit on its own, but a prompt call with your doctor makes sense instead of waiting until next year.
• A new triglyceride result of 1000 mg/dL or higher. This calls for urgent follow-up, given how directly it ties to pancreatitis risk.
• Lipemic blood, meaning a blood draw that comes back visibly milky or cloudy from the lab. That look is itself a sign of very high triglycerides, and lab teams flag it right away.

How Does Fishtown Medicine Approach High Triglycerides?

At Fishtown Medicine, a high triglyceride result is never read alone. Because triglycerides move with your metabolism day to day, we read them alongside fasting insulin, hemoglobin A1c, and waist size. Insulin resistance is one of the most common drivers of a high number. We also check ApoB. When triglycerides run high, ApoB and non-HDL cholesterol are much more reliable guides to your heart risk than LDL cholesterol alone.

The plan follows the bands above. Lifestyle comes first at every level, a statin comes in early when your heart risk calls for it, and triglyceride-specific medication is layered in once pancreatitis risk enters the picture at 500 mg/dL and above. If your number is severe or you are not sure which band you are in, send us your panel and we will walk through it with you.

Start your intake and tell us your numbers. We read every one ourselves.

Related at Fishtown Medicine

• Remnant Cholesterol: The Risk Hiding in Your Standard Panel - the triglyceride-carrying particles that build plaque
• ApoB vs LDL Cholesterol - why particle count matters more than triglycerides or LDL alone
• Icosapent Ethyl (Vascepa) - the prescription omega-3 studied for high triglycerides on a statin
• Why Your "Normal" LDL Can Hide Heart Risk - the full preventive cardiology approach at Fishtown Medicine
• Beyond Statins: Other Ways to Lower Cholesterol and ApoB - where fibrates and other options fit among the choices
• Lipoprotein(a): The Genetic Particle Doctors Miss - another advanced marker worth checking alongside triglycerides and ApoB
• What Is a Preventive Cardiologist, and Do You Need One? - what a deeper workup looks like once diet and activity are not enough on their own

Scientific References

1. Blumenthal RS, Morris PB, Gaudino M, et al. "2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines." Journal of the American College of Cardiology. 2026;87(19).
2. Bhatt DL, Steg PG, Miller M, et al. "Cardiovascular risk reduction with icosapent ethyl for hypertriglyceridemia (REDUCE-IT)." New England Journal of Medicine. 2019;380(1):11-22.