Habits can halve your triglycerides, and very high levels can inflame the pancreas

Key takeaways

• In a 2011 review of the evidence, the American Heart Association found that combined lifestyle changes can cut triglycerides by 50% or more⁶⁷.
• For fasting levels of 150 to 499 mg/dL, the 2026 cholesterol guideline advises a diet low in added sugar, refined carbohydrates and saturated fat, with little alcohol².
• Above about 1,000 mg/dL, triglycerides can trigger acute pancreatitis; get medical care right away for severe or worsening belly pain, vomiting, fever or a racing heart¹³¹⁴¹⁵.
• A fibrate that cut triglycerides by about a quarter in 10,497 people with diabetes didn’t prevent heart attacks or strokes, and its trial was stopped early⁸.
• In June 2026, FDA approved olezarsen to lower triglycerides and the risk of pancreatitis in adults with levels of 500 or more, after trials found 85% fewer pancreatitis episodes¹¹.

In November 2022, researchers reported on a large heart trial that had been stopped early. The drug, pemafibrate, had done what it was designed to do: it cut triglycerides in 10,497 people with type 2 diabetes by about 26%⁸.

But it wasn’t preventing heart attacks, strokes or heart deaths. After a median of 3.4 years, the drug and placebo groups had nearly identical event rates⁸.

In June 2026, the Food and Drug Administration approved a different triglyceride drug for a different job. Olezarsen’s new approval rests on another kind of result: in people with very high levels, it sharply cut attacks of acute pancreatitis, a painful and sometimes deadly inflammation of the pancreas¹¹.

Those two results capture the double life of triglycerides. At moderate levels, they’re mostly a signal about your metabolism, and habits are the best first tool. At very high levels, they can injure an organ, and bringing them down matters right away.

Below, we look at what the number means, why it climbs, how much each habit lowers it and when to get help.

Triglycerides are fuel, carried in particles

Triglycerides are a type of fat in your blood, separate from cholesterol³. They’re fuel, and they ride in the same protein-coated carriers as cholesterol: chylomicrons from the gut and VLDL from the liver, according to the NIH-hosted textbook Endotext⁴.

An enzyme called lipoprotein lipase unloads the triglycerides so muscle and fat tissue can use them, leaving smaller, cholesterol-rich remnants behind⁴. When that enzyme is broken or missing, triglycerides pile up, which is what happens in a rare inherited disorder described below¹⁵. Our companion cholesterol article explains why remnants matter for arteries.

Triglycerides are common and changeable. In national survey data from 1999 to 2008, 31% of U.S. adults had levels of 150 mg/dL or more, and 1.1% had 500 or more⁵. The median was about 106 for women and 122 for men⁵.

They also bounce around. A 2011 AHA scientific statement found that triglycerides typically vary about 23.5% from one measurement to the next, compared with about 5% for total cholesterol⁶. A single meal with about 50 grams of fat can push them at least 50% above fasting levels⁵. The AHA statement advised a fasting recheck within two to four weeks when a nonfasting result reaches 200 or more⁵.

What your number means, and whether you needed to fast

Different groups slice the range a little differently, so it helps to know whose labels you’re reading.

• MedlinePlus, the National Library of Medicine’s consumer site, calls under 150 normal, 150 to 199 borderline high and 200 or more high³.
• The 2011 AHA statement added an “optimal” fasting level under 100, as a sign of metabolic health rather than a treatment goal⁶. It called 500 or more very high⁵.
• The 2026 guideline from the American College of Cardiology, the AHA and nine other groups uses three bands for fasting levels: 150 to 499, 500 to 999, and 1,000 or more².

Fasting is no longer the default. The 2026 guideline says a nonfasting lipid panel is fine for most people². It uses 175 mg/dL as the nonfasting line where lifestyle treatment should start, compared with 150 fasting². If a nonfasting result reaches 400 or more, or you have a known triglyceride disorder, it calls for a fasting test².

Why triglycerides climb

Most high triglycerides come from a mix of habits, other health conditions, medicines and genes.

Food and drink. The 2026 guideline’s diet advice for high triglycerides targets added sugar, refined carbohydrates, saturated fat and alcohol². The 2011 AHA statement singled out excess alcohol, especially alongside a diet high in saturated fat, as a cause of very high levels⁵.

Weight and blood sugar. Childhood obesity is the main cause of high triglycerides in kids, the AHA statement found⁵. Poorly controlled diabetes can drive levels very high⁵. A later article in this series covers insulin resistance.

Other conditions. The AHA statement lists an underactive thyroid, kidney disease and pregnancy, especially the third trimester⁵.

Medicines. The same statement names several drug types that can raise triglycerides in some people⁵:

• oral estrogens, tamoxifen and raloxifene;
• corticosteroids;
• retinoids, the vitamin A-based drugs;
• some beta-blockers and thiazide diuretics, used for blood pressure;
• atypical antipsychotics;
• protease inhibitors, used for HIV, plus sirolimus, interferon and L-asparaginase;
• bile acid resins, a cholesterol drug class.

Don’t stop any of these on your own. MedlinePlus advises changing such medicines only after talking with a clinician¹⁵. Ask whether one of yours could be playing a role.

Genes. Familial chylomicronemia syndrome, or FCS, is a rare inherited condition in which the body can’t clear triglycerides. FDA estimates it affects 1 to 10 people per million, and levels can reach the thousands⁹. MedlinePlus notes a more common pattern: people with an inherited tendency toward high triglycerides who then develop diabetes or obesity or take certain medicines¹⁵.

Habits can cut triglycerides in half

This is where natural-health instincts and cardiology agree. Prevention-minded readers will recognize the list: whole foods over sugary drinks, regular movement, moderation with alcohol. The AHA’s 2011 statement, which drew on more than 500 studies from 30 years, put numbers on each step for people with high levels⁶⁷:

• Losing 5% to 10% of body weight: about 20% lower triglycerides⁶.
• Swapping added sugar and fructose for unsaturated fats: another 10% to 20%⁶.
• At least 150 minutes a week of moderate activity: a further 20% to 30%⁷.
• All of it together: reductions of 50% or more⁶.

The statement set targets for people whose levels run high. Keep added sugar to about 100 calories a day for women and 150 for men, and fructose under 50 to 100 grams⁷. Sugar-sweetened drinks should top out around 36 ounces a week⁷.

Fifteen years later, the 2026 guideline still leads with lifestyle. For fasting triglycerides of 150 or more, or nonfasting levels of 175 or more, it recommends losing 5% to 10% of body weight². It adds at least 150 minutes a week of moderate to vigorous activity, plus resistance exercise twice a week².

The alcohol advice tightens as levels rise. The guideline says to minimize alcohol from 150 to 499, avoid it from 500 to 999 and eliminate it at 1,000 or more².

What about pills? The guideline recommends against dietary supplements for lowering triglycerides or LDL, citing limited and inconsistent evidence². Prescription omega-3 is different, and our article on fish oil explains when it’s used.

The triglyceride action table

We built this table from the sources cited. It’s a planning aid for a talk with your clinician, not a treatment plan.

Your fasting level	What the 2026 guideline calls for	Typical effect of habits	When medicine comes up	Urgent signs
Under 150 (under 175 nonfasting)	No triglyceride-specific advice; under 100 is optimal26	Keep what works	Not for triglycerides	None from triglycerides
150 to 499	Less added sugar, refined carbs and saturated fat; minimal alcohol; 5% to 10% weight loss; 150+ minutes of activity2	About 20% from weight loss; 50% or more combined6	A statin is the main drug if your heart risk calls for one1	Triglyceride pancreatitis usually involves far higher levels14
500 to 999	The same, plus no alcohol and a personal limit on total fat2	Same steps, done strictly	Your clinician may add a triglyceride drug; olezarsen is approved at 500+111	Severe belly pain needs care right away1315
1,000 or more	Very low fat and refined carbs; no alcohol or added sugar; a dietitian referral2	Diet is part of treatment	Triglyceride-lowering therapy, especially to prevent pancreatitis1	Same; risk is highest here514

Very high levels can inflame the pancreas

The pancreas makes digestive enzymes. When it becomes inflamed, the condition can turn dangerous¹³.

High triglycerides cause about 10% of acute pancreatitis cases, the AHA statement found, while gallstones and alcohol cause at least 80%⁵. MedlinePlus says the triglyceride level involved is most often above 1,000 mg/dL¹⁴. The AHA statement called that line somewhat arbitrary, and recent trials counted pancreatitis attacks in people starting from 500 or more⁵¹².

Diabetes adds risk. In two recent olezarsen trials of people with levels of 500 or more, those with diabetes had about 3.8 pancreatitis episodes per 100 people a year on study, versus about 1.0 for those without¹².

Lowering the number didn’t always help the heart

Back to pemafibrate. Its trial, called PROMINENT, enrolled people with type 2 diabetes, triglycerides of 200 to 499 and an HDL of 40 or lower; 96% were already taking statins⁸.

Heart events struck 572 people on pemafibrate and 560 on placebo, or 3.60 versus 3.51 per 100 people a year⁸. By our math, that’s about 36 versus 35 per 1,000 people a year, a gap that could easily be chance. The trial was stopped early for futility, meaning it had no realistic chance of showing benefit⁸. People on the drug had more kidney problems and blood clots⁸.

One possible reason is a lesson in itself. Pemafibrate lowered remnant cholesterol, but apoB, a count of artery-clogging particles, rose 4.8%⁸. Aruna Pradhan, who presented the results, said the data couldn’t rule out that rising LDL and apoB canceled any benefit from lower triglycerides⁸. The trial was funded by the Kowa Research Institute⁸.

The 2026 guideline makes a statin, with lifestyle, the foundation of drug treatment for heart risk in people with high triglycerides¹. Triglyceride-lowering drugs can be added to prevent pancreatitis, especially at 1,000 or more¹. Our companion cholesterol article explains apoB, and our fish oil article covers prescription omega-3.

New drugs target the rarest and the most severe cases

For people with FCS, the core treatment has been a low-fat, alcohol-free diet¹⁵. Since late 2024, FDA has approved two drugs to use alongside it⁹¹⁰.

• Olezarsen (Tryngolza), December 2024. FDA approved it with diet for adults with FCS. In a trial of 66 adults whose levels averaged about 2,600 mg/dL, it cut triglycerides 42.5% more than placebo at six months⁹. It’s injected monthly⁹.
• Plozasiran (Redemplo), November 2025. FDA approved it for the same use. On a diet of 20 grams of fat a day or less, people’s triglycerides fell a median of 59% more than with placebo at 10 months¹⁰. It’s injected every three months¹⁰.

Olezarsen works by lowering apoC-III, a liver protein that slows triglyceride clearance¹¹. The 2026 guideline recommends it, with diet, for FCS with levels of 1,000 or more².

On June 24, 2026, olezarsen’s maker, Ionis, announced a broader FDA approval: adults with severe hypertriglyceridemia, defined as 500 or more¹¹. In two trials of 1,063 people already on standard treatment, triglycerides fell roughly 49% to 72% versus placebo, depending on dose and trial¹¹¹². Pancreatitis episodes fell 85%¹¹.

In absolute terms, an analysis presented in June 2026 found about 6.9 fewer episodes per 100 people a year for those with diabetes, and 2.9 fewer for those without¹². That’s roughly 69 and 29 per 1,000 people a year, by our math.

There are trade-offs. Liver enzyme rises, more liver fat and low platelet counts were more common at the higher dose¹¹. Ionis funded the trials¹². And the approval covers triglycerides and pancreatitis, not heart attacks or strokes¹¹.

What the evidence shows

Claim	Evidence rating	What it rests on
Weight loss, less sugar and alcohol, and exercise lower triglycerides	Strong evidence	AHA review of more than 500 studies; 2026 guideline267
Intensive, combined lifestyle change can cut triglycerides 50% or more	Strong evidence	AHA’s 2011 estimate from a review of more than 500 studies67
Olezarsen lowers pancreatitis risk at levels of 500 or more	Strong evidence	Two company-funded trials, 85% fewer episodes1112
Pemafibrate prevents heart events in people with type 2 diabetes already on statins	Evidence says no, or unsafe	PROMINENT stopped for futility; more kidney problems and clots8
Lowering triglycerides alone, without lowering apoB, protects the heart	Not enough evidence	PROMINENT cut triglycerides but raised apoB8
Supplements lower triglycerides enough to recommend	Not enough evidence	2026 guideline advises against them2

Questions readers ask

The bottom line

Triglycerides are one of the few lab numbers that answer clearly to daily habits. Less added sugar and refined starch, little or no alcohol, a modest weight loss and regular movement can together cut them in half.

At very high levels, they stop being just a warning sign and become a threat to the pancreas, and treatment, including newer drugs, earns its place. Know your number, repeat a surprising result, and treat severe belly pain as a reason to seek care right away.

Related reading

• Your cholesterol panel leaves out two numbers that matter: ApoB and Lp(a)
• A Decade of Big Fish Oil Trials Shrank the List of What It Does
• Fiber, form and a short walk shape how carbs affect your blood sugar
• Inflammation can harm your heart, but an “anti-inflammatory” label proves little
• The few gut symptoms that need a clinician, since most are harmless

Sources

1. American Heart Association. “Top Things to Know: 2026 Guideline on the Management of Dyslipidemia.” AHA Professional Heart Daily; guideline by Blumenthal RS, et al., published online March 13, 2026, in Circulation. professional.heart.org
2. Blumenthal RS, Morris PB, et al. “2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia.” Circulation, 2026; doi:10.1161/CIR.0000000000001423 (copy posted on a Universidad Nacional de Córdoba course site). fcm.aulavirtual.unc.edu.ar
3. MedlinePlus. “Cholesterol Levels: What You Need to Know.” National Library of Medicine, updated October 7, 2026. medlineplus.gov
4. Feingold KR. “Introduction to Lipids and Lipoproteins.” Endotext, NCBI Bookshelf, updated January 14, 2024. ncbi.nlm.nih.gov
5. Miller M, Stone NJ, Ballantyne C, et al. “Triglycerides and Cardiovascular Disease: A Scientific Statement From the American Heart Association.” Circulation, 2011;123:2292–2333 (copy hosted by ReachMD). cdn.reachmd.com
6. American College of Cardiology. “Triglycerides and Cardiovascular Disease: A Scientific Statement From the American Heart Association.” Journal scan, April 2011. acc.org
7. American Heart Association. “Dietary, lifestyle changes can significantly reduce triglycerides.” News release via ScienceDaily, April 18, 2011. sciencedaily.com
8. Healio. “Pemafibrate lowers triglycerides but not CV events in type 2 diabetes, mixed dyslipidemia” (on Das Pradhan A, et al., PROMINENT, New England Journal of Medicine, 2022). November 5, 2022. healio.com
9. U.S. Food and Drug Administration. “FDA approves drug to reduce triglycerides in adult patients with familial chylomicronemia syndrome.” December 19, 2024. fda.gov
10. U.S. Food and Drug Administration. “FDA approves drug to reduce triglycerides in adults with familial chylomicronemia syndrome.” November 18, 2025. fda.gov
11. HCPLive. “FDA Approves Olezarsen (Tryngolza) for Severe Hypertriglyceridemia.” June 24, 2026. hcplive.com
12. Cleveland Clinic Journal of Medicine. “Olezarsen and triglycerides: ADA 2026 Scientific Sessions” (on Kang YM, et al., pooled CORE and CORE2 analysis, presented June 6, 2026). ccjm.org
13. National Institute of Diabetes and Digestive and Kidney Diseases. “Symptoms & Causes of Pancreatitis.” NIDDK, last reviewed November 2017. niddk.nih.gov
14. MedlinePlus. “Acute pancreatitis.” Medical Encyclopedia, National Library of Medicine, reviewed October 20, 2025. medlineplus.gov
15. MedlinePlus. “Chylomicronemia syndrome.” Medical Encyclopedia, National Library of Medicine, reviewed April 28, 2026. medlineplus.gov