Lowering triglycerides and LDL cholesterol at the same time is achievable, but the two respond to somewhat different strategies. LDL drops most from changes in dietary fat and fiber intake, while triglycerides are more sensitive to sugar, alcohol, and excess calories. The good news: several interventions hit both targets at once, and most people see measurable changes on a blood test within about 12 weeks of consistent effort.
Why These Two Numbers Need Different Strategies
LDL cholesterol and triglycerides both travel through your bloodstream on protein carriers, but they play different roles. LDL is the primary vehicle for cholesterol, ferrying it to your tissues where it can build up in artery walls over time. Triglycerides are a fat your body makes from excess calories and uses for energy. Your liver produces both, but the triggers for overproduction differ.
Triglycerides are especially responsive to sugar intake. Fructose, found in table sugar and high-fructose corn syrup, gets processed almost entirely by the liver. Unlike glucose, fructose bypasses a key regulatory step in metabolism, giving the liver a relatively unregulated supply of raw material to manufacture fat. This is why cutting back on added sugars can lower triglycerides quickly, even without other changes. LDL, on the other hand, responds more to the types of fat you eat and how much cholesterol your gut absorbs.
For reference, triglycerides above 150 mg/dL are considered elevated, and levels at or above 175 mg/dL (nonfasting) are flagged as persistently high. For LDL, levels in the 160 to 189 mg/dL range are classified as primary hypercholesterolemia and count as a risk-enhancing factor for heart disease. LDL at 190 mg/dL or above puts you in a high-risk category where medication is typically recommended.
Dietary Changes That Lower Both
Add Soluble Fiber for LDL
Soluble fiber reduces the amount of cholesterol your gut absorbs into the bloodstream. Getting 5 to 10 grams or more per day produces a meaningful drop in LDL. Oats, barley, beans, lentils, apples, and citrus fruits are all rich sources. A bowl of oatmeal with a piece of fruit at breakfast gets you roughly halfway to that target. Adding beans or lentils to one meal covers most of the rest.
Cut Added Sugars for Triglycerides
Because fructose drives triglyceride production in the liver so directly, reducing added sugars is the single most effective dietary move for high triglycerides. This means sweetened drinks, desserts, flavored yogurts, and processed foods with high-fructose corn syrup. You don’t need to avoid whole fruit, which contains relatively small amounts of fructose packaged with fiber that slows absorption. The target is the concentrated sources: soda, juice, candy, and baked goods.
Swap Saturated Fats for Unsaturated Fats
Replacing butter, red meat fat, and full-fat dairy with olive oil, nuts, avocados, and fatty fish helps lower LDL. Fatty fish like salmon and mackerel also deliver omega-3 fatty acids, which have a direct triglyceride-lowering effect. This single swap works on both numbers simultaneously.
Limit Alcohol
Alcohol has a surprisingly strong effect on triglycerides. In one study, just two standard drinks raised triglyceride levels by 53% over six hours in people with normal baseline levels. If your triglycerides are already elevated, even moderate drinking can keep them stubbornly high. Cutting back or eliminating alcohol is one of the faster ways to bring triglycerides down.
How Exercise Affects Your Lipid Profile
Exercise improves both LDL and triglycerides, but the type and intensity matter. High-intensity aerobic exercise (running, cycling, swimming at a vigorous pace) is the most effective at clearing LDL and triglycerides from the bloodstream. Moderate-intensity aerobic exercise, like brisk walking, primarily raises HDL (the protective cholesterol) but has less direct impact on LDL and triglycerides unless the duration or intensity increases over time.
Resistance training also helps. Moderate-intensity weight training (more repetitions at lighter weights rather than heavy, low-rep lifting) has been shown to reduce LDL by about 13 mg/dL and triglycerides by about 11 mg/dL over six weeks. Interestingly, higher volume of movement, meaning more sets and repetitions, matters more for lipid improvements than lifting heavier weights. In one study, triglyceride clearance 72 hours after exercise was significantly better following moderate-intensity resistance sessions compared to very heavy lifting, which actually increased triglycerides slightly.
If you’re starting from a sedentary baseline, prolonged moderate-intensity aerobic exercise is the recommended starting point. As your fitness improves, gradually increasing intensity will yield greater lipid benefits.
Weight Loss Makes a Measurable Difference
Losing 5 to 10% of your body weight produces significant reductions in both LDL cholesterol and triglycerides. For someone weighing 200 pounds, that’s 10 to 20 pounds. Even losing less than 5% lowers triglycerides, though LDL typically needs that 5% threshold before it budges meaningfully. Men tend to see a greater triglyceride reduction from the same percentage of weight loss compared to women.
The method of weight loss matters less than the result. Whether you achieve it through dietary changes, exercise, or both, the lipid improvements track with the pounds lost. Combining a calorie reduction with exercise tends to produce the most sustainable results and hits both numbers.
Omega-3 Supplements for Triglycerides
Fish oil supplements can lower triglycerides, but the dose required is higher than most people realize. The American Heart Association recommends 4 grams per day of EPA and DHA (the active omega-3 fatty acids) in prescription form to meaningfully lower high triglycerides. At that dose, they work as a standalone treatment or alongside other medications.
Lower doses still help. Each additional gram per day of omega-3s reduces triglycerides by about 6 mg/dL, and the effect is stronger in people who start with higher levels. A standard over-the-counter fish oil capsule contains roughly 300 mg of combined EPA and DHA, so you’d need many capsules to reach therapeutic doses. Prescription-strength omega-3 formulations are more concentrated and more practical for people with significantly elevated triglycerides.
One important caveat: omega-3s lower triglycerides but do not lower LDL. In some people, high-dose fish oil can actually raise LDL slightly. If both numbers are high, omega-3s work best as part of a broader plan rather than a solo strategy.
When Medication Becomes Necessary
Statins are the first-line medication for reducing cardiovascular risk, and they work primarily by lowering LDL. They also reduce triglycerides in people with levels above 200 mg/dL, making them effective for both targets in many patients. If statins alone don’t bring LDL to goal, a cholesterol absorption blocker can be added, followed by a newer class of injectable medications for more stubborn cases.
For very high triglycerides, particularly levels high enough to risk pancreatitis, fibrates are the go-to medication. These are sometimes used alongside omega-3 fatty acids. Calorie restriction, fat reduction, and alcohol abstinence are also essential at these extreme levels.
A healthy lifestyle remains the foundation regardless of whether medications are involved. Statins and other drugs work better and at lower doses when combined with the dietary and exercise changes described above.
How Long Until You See Results
Most lipid changes show up on blood work within 12 weeks of consistent lifestyle changes. A 12-week structured exercise program has been shown to reduce LDL by about 12% and triglycerides by about 10%, with a 15% increase in HDL as a bonus. Dietary changes, particularly cutting sugar and alcohol, can lower triglycerides even faster, sometimes within a few weeks.
Your doctor will likely recheck your lipid panel at the three-month mark after you start making changes. If the numbers haven’t improved enough by then, that’s typically when medication enters the conversation. For people already on medication, lifestyle changes on top of drug therapy often allow for lower doses or better overall results than either approach alone.