Lowering your cholesterol comes down to a combination of dietary changes, regular physical activity, and, when needed, medical treatment. Most people can reduce their LDL (“bad”) cholesterol by 10% to 30% through lifestyle changes alone, though the exact drop depends on where you start and how many changes you make at once. Here’s what actually works and by how much.
Know Your Target Numbers
Before making changes, it helps to know what you’re aiming for. Updated guidelines from the American Heart Association set LDL targets based on your overall risk of heart attack or stroke over the next ten years. If your risk is low to moderate, the goal is an LDL below 100 mg/dL. If your risk is high (10% or greater over ten years), the target drops to below 70 mg/dL. People who have already had a heart attack or stroke and remain at very high risk should aim for below 55 mg/dL.
Your doctor calculates that ten-year risk using factors like age, blood pressure, cholesterol levels, and whether you smoke or have diabetes. If you’ve had a coronary calcium scan and any calcium was detected, that alone supports targeting an LDL below 100 mg/dL, with lower goals for higher calcium scores.
Cut Back on Saturated Fat
Saturated fat raises LDL more than almost anything else in your diet. The current recommendation is to keep saturated fat below 5% to 6% of your total daily calories. On a 2,000-calorie diet, that’s roughly 11 to 13 grams per day, which is less than what’s in a single fast-food cheeseburger.
The biggest sources are red meat, full-fat dairy (butter, cheese, whole milk), coconut oil, and baked goods made with these ingredients. You don’t need to eliminate them entirely. Swapping a few servings per week for unsaturated alternatives, like olive oil instead of butter, or chicken and fish instead of beef, makes a measurable difference. Replacing saturated fat with unsaturated fat doesn’t just lower LDL; it also improves the ratio between your good and bad cholesterol.
Add More Soluble Fiber
Soluble fiber works by binding to cholesterol in your digestive tract and pulling it out of your body before it reaches your bloodstream. Getting 5 to 10 grams of soluble fiber per day produces a noticeable drop in LDL. That’s a realistic amount to hit through food: a bowl of oatmeal has about 2 grams, a cup of cooked beans has 2 to 3 grams, and an apple or a pear adds another gram.
Other good sources include barley, Brussels sprouts, flaxseed, and citrus fruits. If you’re not used to eating much fiber, increase gradually over a couple of weeks to avoid bloating and gas. Drinking more water as you add fiber also helps your digestive system adjust.
Try Plant Sterols and Stanols
Plant sterols and stanols are naturally occurring compounds found in small amounts in grains, nuts, and vegetables. They block cholesterol absorption in your gut. Clinical trials have shown that consuming 0.8 to 3 grams per day lowers LDL cholesterol. In one study, people who took 1.8 grams of plant sterols spread across three daily doses saw their LDL drop by about 6%.
You’ll find these added to certain brands of margarine, orange juice, and yogurt drinks. Splitting your intake across meals works better than taking it all at once. These products are widely available in grocery stores and can be stacked on top of dietary changes for additional benefit.
Exercise Consistently
Physical activity improves your cholesterol profile in two ways: it raises HDL (“good”) cholesterol and lowers LDL. A 12-week study of moderate-intensity exercise, with sessions lasting about an hour, found that LDL dropped by 7.2% and HDL increased by 6.6%. Participants who then moved to a high-intensity program for an additional 15 weeks saw HDL climb another 8.2% on top of the earlier gains.
You don’t need to run marathons. Brisk walking, cycling, swimming, or any activity that gets your heart rate up counts as moderate intensity. The key is consistency over weeks and months rather than occasional bursts. Aim for at least 150 minutes of moderate activity per week, which works out to about 30 minutes on most days. If you can eventually incorporate some higher-intensity sessions (jogging, interval training, vigorous cycling), the benefits continue to compound.
Lose Weight If You Need To
Carrying extra weight, particularly around the midsection, pushes LDL and triglycerides up while dragging HDL down. The relationship between weight loss and cholesterol improvement is well-documented: losing about 20 pounds has been shown to reduce LDL by 15%, cut triglycerides by 30%, and raise HDL. Studies also show that losing even 10% of your body weight is enough to see meaningful cholesterol improvement.
You don’t need a dramatic diet overhaul. The same changes that lower cholesterol directly, eating less saturated fat, more fiber, and exercising regularly, also tend to produce gradual weight loss. That overlap makes the combined effect on your numbers larger than any single change alone.
Omega-3s for High Triglycerides
If your triglycerides are elevated, omega-3 fatty acids (the kind found in fatty fish like salmon, mackerel, and sardines) can help. Eating two servings of fatty fish per week is a reasonable starting point. However, the doses needed to produce a significant triglyceride reduction are much higher than what most people get from food alone.
The American Heart Association notes that prescription-strength omega-3s, providing more than 3 grams per day of EPA and DHA combined, reduce triglycerides by 30% or more in people with very high levels. Doses below 2 grams per day are not effective for this purpose. Over-the-counter fish oil supplements vary widely in the amount of EPA and DHA per capsule, and getting to the effective dose through supplements alone requires medical guidance because high-dose omega-3s can increase bleeding risk and interact with other medications.
Red Yeast Rice: Proceed With Caution
Red yeast rice is a popular supplement marketed for cholesterol control. It works because it contains a compound called monacolin K, which is chemically identical to the prescription statin lovastatin. Products with high amounts of monacolin K can lower total and LDL cholesterol.
The catch is that supplement quality varies enormously. Some red yeast rice products contain very little monacolin K and have minimal effect. Others contain enough to produce the same side effects as prescription statins, including muscle pain, liver problems, and kidney issues, but without the dosing consistency or medical monitoring that comes with a prescription. If you’re interested in this supplement, it’s worth knowing that you’re essentially taking an unregulated version of a statin.
When Lifestyle Changes Aren’t Enough
For some people, genetics play such a large role that diet and exercise alone won’t bring cholesterol to a safe range. Familial hypercholesterolemia, for example, is an inherited condition that causes very high LDL levels regardless of lifestyle. In these cases, medication is necessary.
Statins remain the most commonly prescribed option and work by reducing the amount of cholesterol your liver produces. For people who can’t tolerate statins or don’t reach their LDL goal with them, newer injectable medications called PCSK9 inhibitors can lower LDL by 50% to 60%. These are typically reserved for people with inherited cholesterol disorders or established heart disease who haven’t responded adequately to other treatments.
The most effective approach for most people combines several moderate changes at once. Reducing saturated fat, adding soluble fiber, exercising regularly, and losing some weight each contribute their own percentage drop in LDL. Together, those individual improvements stack up to a meaningful reduction in both your cholesterol numbers and your long-term cardiovascular risk.