The best way to lower your cholesterol combines dietary changes, regular exercise, and, when needed, medication. Most people can reduce LDL (the “bad” cholesterol) by up to 10 percent through diet alone within 8 to 12 weeks. Adding exercise and medication can push that number significantly higher.
Dietary Changes That Move the Needle
What you eat has a direct, measurable effect on your cholesterol. Three dietary strategies have the strongest evidence behind them: increasing soluble fiber, reducing saturated fat, and adding plant sterols to your meals.
Soluble fiber works by binding to cholesterol in your digestive system and pulling it out of your body before it reaches your bloodstream. Aim for 5 to 10 grams of soluble fiber per day. Good sources include oats, barley, beans, lentils, apples, and citrus fruits. A bowl of oatmeal with a banana at breakfast gets you roughly halfway there.
Saturated fat raises LDL more than almost anything else in your diet. It’s concentrated in red meat, full-fat dairy, butter, and coconut oil. Swapping these for unsaturated fats, like olive oil, nuts, avocados, and fatty fish, lowers LDL while keeping meals satisfying. You don’t need to eliminate saturated fat entirely, but cutting back meaningfully makes a real difference.
Plant sterols and stanols are compounds found naturally in small amounts in grains, vegetables, and nuts. When consumed in higher doses (around 1.8 to 3 grams per day), they block cholesterol absorption in your gut. In a USDA-funded study, volunteers who consumed 1.8 grams of plant sterols spread across three daily meals saw their LDL drop by 6 percent. Many fortified foods like certain margarines, orange juices, and yogurts contain added sterols, and spreading your intake across the day works better than taking it all at once.
The Mediterranean and DASH Diets
Rather than tracking individual nutrients, many people find it easier to follow an overall eating pattern. The Mediterranean diet emphasizes vegetables, fruits, whole grains, legumes, nuts, olive oil, and fish while limiting red meat and processed foods. The DASH diet follows a similar framework with extra emphasis on low-sodium foods and low-fat dairy. Both patterns naturally deliver more fiber and unsaturated fats while cutting back on the saturated fat that raises LDL. Following a balanced diet like these can reduce cholesterol levels by up to 10 percent over 8 to 12 weeks.
How Exercise Helps
Physical activity lowers LDL and raises HDL (the “good” cholesterol that helps clear LDL from your arteries). The American Heart Association recommends 150 to 300 minutes per week of moderate-intensity aerobic exercise, such as brisk walking, cycling, or swimming. If you prefer vigorous exercise like running or high-intensity interval training, 75 to 150 minutes per week provides equivalent benefits. The 2018 cholesterol clinical practice guidelines are more specific: three to four 40-minute sessions per week of moderate-to-vigorous aerobic exercise.
Resistance training (weight lifting, bodyweight exercises, resistance bands) at least twice per week, hitting all major muscle groups, adds further benefit. Exercise won’t drop your LDL as dramatically as diet in the short term, but over 12 months, regular moderate-intensity exercise can lower LDL by up to 20 percent.
Weight Loss and Smoking
If you’re carrying extra weight, losing even a modest amount improves your cholesterol profile within a couple of months. Fat tissue, particularly around the abdomen, contributes to higher LDL and lower HDL. You don’t need to hit an ideal weight to see results. Losing 5 to 10 percent of your body weight is often enough to shift your numbers in the right direction.
Smoking damages blood vessel walls and makes your blood stickier, both of which worsen the harm that high cholesterol does. Within 2 to 3 weeks of quitting, your blood becomes less sticky and your LDL levels start to improve. Your HDL also rises after quitting, which is one of the few reliable ways to boost it.
When Medication Becomes Necessary
Lifestyle changes are always the foundation, but some people need medication on top of them. The latest guidelines from the American College of Cardiology and the American Heart Association (updated in 2026) use a risk calculator that estimates your chance of a heart attack or stroke over the next 10 years. That risk score, combined with your LDL level, determines whether medication is recommended.
For people at intermediate risk (5 to 10 percent chance over 10 years), moderate-intensity statin therapy is typically recommended, with a goal of reducing LDL by at least 30 percent and getting it below 100 mg/dL. For those at high risk (10 percent or above), high-intensity statin therapy aims to cut LDL by 50 percent or more, targeting an LDL below 70 mg/dL. People with very high LDL (190 mg/dL or above) generally need medication regardless of other risk factors.
Statins remain the first-line treatment. They work by slowing cholesterol production in the liver and begin lowering levels within 3 to 4 weeks. If statins alone aren’t enough or cause side effects, additional medications can be layered on. These include drugs that block cholesterol absorption in the gut and newer injectable medications that help the liver clear LDL from the bloodstream more efficiently. One newer oral option, when added to injectable therapy, lowered LDL by an additional 30 percent in clinical trials.
How Long Results Take
Cholesterol doesn’t change overnight, but improvements happen faster than most people expect. Here’s a realistic timeline:
- Diet changes: Up to 10 percent LDL reduction within 8 to 12 weeks.
- Statins: Measurable drops in 3 to 4 weeks. Your doctor will typically recheck your bloodwork after 3 months.
- Exercise: Gradual improvements over months, with up to 20 percent LDL reduction by 12 months of consistent activity.
- Quitting smoking: Blood stickiness improves within 2 to 3 weeks.
- Weight loss: Cholesterol improvements within a couple of months.
Stacking these strategies produces the biggest results. Someone who overhauls their diet, starts exercising regularly, and takes a statin if prescribed can see dramatic changes within three to six months. The key is consistency: cholesterol levels drift back up when habits slip, so the changes that work best are the ones you can maintain long term.