How to Lower LDL Cholesterol: What Works

The short version

To lower LDL cholesterol, start with diet: less saturated fat, more soluble fiber, plant sterols, and nuts. Add exercise and weight loss, and use medicine when the gap to your goal is bigger than diet can close. How far you are from your goal decides how strong a treatment you need.

• A few points to 10 or 15% lower: diet and lifestyle changes can usually get you there.
• Up to about 25 to 30% lower: possible with a serious, combined diet like the Portfolio diet, mostly in people who stick with it closely.
• Beyond that: most people need medicine, usually on top of the diet changes.

The rest of this guide puts a number on each step, so you can match the treatment to the gap.

Why lowering LDL matters

LDL particles carry cholesterol into the artery wall, where it builds into plaque over years. Decades of trials point the same way: lowering LDL prevents heart attacks and strokes. A large meta-analysis of 26 statin trials with about 170,000 people found that each 1 mmol/L (about 39 mg/dL) drop in LDL cut the yearly rate of major vascular events by about 22%, with no lower threshold where the benefit stopped.

A lower LDL helps more the longer you keep it there.

How low should LDL be? (2026 targets)

The 2026 ACC/AHA dyslipidemia guideline brought back specific LDL goals, sorted by risk. A simplified version:

The guideline also sets specific goals for people with a coronary calcium score, an LDL-C of 190 or higher, or familial hypercholesterolemia. Your goal depends on your own risk, so ask someone to calculate it rather than trusting the "normal range" on a lab report. The guideline recommends measuring Lp(a) at least once in adulthood, and using ApoB to refine risk in some people.

Step 1: Food changes, with realistic numbers

For most people, diet changes lower LDL by about 10 to 15%, and a strict combined diet can do more. Start with food. The table shows roughly what each change is worth, based on the best available trials and meta-analyses. Individual responses vary a lot, so treat these as averages.

Cut saturated fat, and replace it with something better

Saturated fat raises LDL more than any other part of the diet. In a meta-analysis of 60 controlled feeding trials, replacing saturated fat with unsaturated fats improved the cholesterol profile, while replacing it with carbohydrates did not.

What you swap in matters. Olive oil, canola oil, nuts, seeds, avocado, and fish help, while replacing butter with refined carbs and sugar helps much less.

Add soluble fiber

Viscous fiber (oats, barley, beans, lentils, okra, eggplant, and psyllium) binds bile acids in the gut, so your liver pulls more LDL out of the blood to make new ones. In a 2018 meta-analysis of 28 trials, about 10 grams of psyllium a day lowered LDL-C by about 13 mg/dL and ApoB by about 5 mg/dL.

Plant sterols and stanols

Plant sterols block some cholesterol absorption. A European Atherosclerosis Society consensus panel found that 2 grams a day lowers LDL by 8 to 10%, and that the effect adds to a statin. You'll find them in fortified spreads, yogurts, and supplements. No outcome trial has shown that they prevent heart attacks on their own, so think of them as a helper alongside the other changes.

The Portfolio diet: putting it all together

The Portfolio diet combines four things: plant sterols, soy protein, viscous fiber, and nuts, on top of a diet low in saturated fat. In a tightly controlled one-month study where participants were given all their food, it lowered LDL by 28.6%, close to the 30.9% seen with a starter dose of lovastatin in the same study.

At home, the numbers shrink. When 351 people were coached to follow the Portfolio diet at home for six months, LDL-C fell by about 13 to 14% (around 25 mg/dL), compared with 3% on a standard low-saturated-fat diet. People who followed it more closely got bigger drops.

That drop still matters, and it shows what diet alone can do for most people.

Step 2: Exercise and weight

Both help LDL a little and help triglycerides more. Exercise helps your heart, blood pressure, blood sugar, and triglycerides. Its effect on LDL is modest. A 2025 meta-analysis of exercise trials found an average LDL-C drop of about 7 mg/dL.

Weight loss helps people carrying extra weight. In a meta-analysis of 70 studies of weight loss by dieting, LDL cholesterol and triglycerides both fell as weight came off. The LDL change is usually modest, and the bigger payoff tends to be in triglycerides and blood sugar.

Do both, for many reasons, but neither alone usually brings a high LDL down to goal.

Step 3: When diet isn't enough, medicines and how fast they work

If your LDL is more than about 15 to 20% above your goal, or your risk is high, medicine usually gets you there faster and more surely. Diet and exercise still matter, because they add to what the medicine does.

Statins (first line)

Statins anchor treatment and carry the most outcome evidence. A moderate-intensity statin typically lowers LDL by 30 to 49%, and a high-intensity statin by 50% or more.

They also work quickly. According to the atorvastatin (Lipitor) prescribing information, a response is seen within 2 weeks and the maximum effect is usually reached within 4 weeks. So clinicians typically recheck at about 4 to 12 weeks. If you've been worried about side effects, our guide to statin side effects covers what the evidence shows.

Add-on and alternative medicines

When a statin isn't enough or isn't tolerated, turn to these main options. The LDL reductions below are median figures from the 2026 guideline summary.

Trials show that several of these also prevent heart attacks and strokes. In the FOURIER trial, adding evolocumab (Repatha) to a statin lowered LDL by 59% and reduced major cardiovascular events. In CLEAR Outcomes, bempedoic acid lowered major cardiovascular events by 13% in people who couldn't take statins.

Newer PCSK9 options, the once-monthly injection Lerochol and the daily pill Lipfendra, add more choices. Our PCSK9 inhibitor prescription page explains who qualifies and how coverage works. For a full rundown, see our guide to prescription cholesterol medications and PCSK9 inhibitors.

When to get help

Consider talking with a clinician about prescription treatment if:

• Your LDL-C is 190 mg/dL or higher (ask about familial hypercholesterolemia)
• You have heart disease, diabetes, or a strong family history of early heart disease
• You've made real diet changes and your LDL is still well above your goal
• You've had trouble with a statin and haven't found an alternative that works (our statin intolerance program is built for this)
• Your ApoB or Lp(a) is high

How Preval Health can help

Preval Health focuses only on prescription lipid management. A board-certified preventive cardiologist writes our treatment protocols, and licensed clinicians through our partner telehealth network deliver your care and write prescriptions. We set LDL and ApoB goals for you, recheck on a schedule, and step up treatment when needed, all the way to PCSK9 inhibitors. Preval runs as a cash practice: $99 a month for care, with medicines at cash prices. If you're comparing options, see our comparison of online cholesterol treatment.