How Long Does It Take to Lower Cholesterol

By Terez Malka, MD
Medically reviewed checkmarkMedically reviewed
January 14, 2022

Cholesterol isn’t all bad.

Our bodies need cholesterol to make cell walls and hormones and perform other key functions.

However, too much cholesterol increases the risk of heart attack, stroke, and heart disease. 

If you have high cholesterol, you can take action to reduce your levels and improve your heart health.

While you cannot lower high cholesterol levels overnight, making changes to live a healthy lifestyle can make significant improvements over time. 

In this article, I’ll explain what high cholesterol is, how long it takes to lower cholesterol, various ways to lower cholesterol levels, and when to see a doctor about high cholesterol.

No matter how long it may take, managing high cholesterol is worth it for the sake of your heart.

What Is High Cholesterol?

Cholesterol is a waxy substance produced by the liver.

Our bodies produce all the cholesterol we need.

But our diets are another source of cholesterol.

In particular, animal foods contain cholesterol, and foods high in saturated and trans fat cause the liver to produce more cholesterol.

Cholesterol levels are checked through a simple blood test.

This test typically measures: 

  • HDL cholesterol: High-density lipoproteins (often considered “good” cholesterol) carry cholesterol back to the liver to be flushed out of the body.
  • LDL cholesterol: Low-density lipoproteins (also known as “bad” cholesterol) can cause cholesterol to build up and clog the arteries.
  • Total cholesterol: The combined amount of HDL, LDL, and other types of cholesterol in your blood.

For adults 20 and older, cholesterol is considered “high” if someone has:

  • Total cholesterol of 240 mg/dL
  • LDL cholesterol of 160 mg/DL or higher

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Timeline for Lowering Cholesterol

Lowering cholesterol can take time, but it’s worth it.

Whether using medication, lifestyle changes, or a combination of the two, many people see improvement in their cholesterol levels within a few weeks.

Others experience notable changes after a few months. 

That’s why it’s important to keep the big picture in mind, ignore quick fixes, and make changes you can live with long term: In order to lower high cholesterol and improve heart health for good, you need to create new habits.

How to Lower Cholesterol

A number of lifestyle changes can help reduce cholesterol and support heart and overall health.

Talk to your healthcare provider about the following ways to help manage cholesterol levels.

Eat a healthy diet

You don’t have to completely give up the foods you love in order to benefit your heart.

The key is to focus on consuming more beneficial foods and less not-so-healthy ones. Specifically:

  • Increase your intake of fiber: Found in plant foods, fiber reduces total and LDL cholesterol, although it’s unclear exactly why this is. Soluble fiber (found in oatmeal, beans, legumes, and some vegetables and fruit) is most beneficial.
  • Reduce how much saturated and trans fats you eat: Eating too many of these fats increases blood cholesterol levels. Limit (or eliminate) your consumption of red meat, processed meats (like bacon, hot dogs, and lunch meat), poultry skin, full-fat dairy, fried foods, and packaged foods made with hydrogenated oils, palm oil, and coconut oil.
  • Favored unsaturated fats: When eaten in place of saturated fats, healthy fats from foods like avocado, olives and olive oil, nuts, and seeds help reduce LDL.
  • Fill up with vegetables and fruit: The more of these foods that you eat, the lower your LDL, research suggests.

Increase physical activity

Exercise increases HDL cholesterol levels, which in turn helps decrease LDL by carrying it away from the arteries to be removed from the body.

Moderate-intensity aerobic exercise (such as brisk walking, biking slower than 10 miles per hour, and playing doubles tennis) and resistance training (lifting weights or doing bodyweight exercises) both have benefits.

The American Heart Association recommends 150 minutes of moderate-intensity aerobic exercise and two days of resistance training per week.

If that seems like a lot, start with 10 minutes a day and gradually increase your activity.

You can also divide your exercise into several short bouts throughout the day, such as 10-, 15-, or 20-minute workouts.

Maintain a healthy weight

Although high cholesterol can affect people of any weight, excess pounds can be a risk factor.

A balanced diet and increased physical activity may help you reach and maintain a healthy weight. 

Quit smoking

Giving up the habit increases HDL cholesterol levels in less than three weeks.

Drink responsibly

Although moderate alcohol consumption appears to increase levels of HDL, drinking more can increase total cholesterol. 

Consider medication

In addition to lifestyle changes, medications such as statins, cholesterol absorption inhibitors, bile-acid-binding resins, and PCSK9 inhibitors may be necessary to reduce high cholesterol to a healthy level.

Discuss your options with your doctor.

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When to See a Doctor

High cholesterol has no symptoms; it can only be detected with a simple blood test.

That’s why it’s important to see a healthcare provider and have your cholesterol checked every five years if you are 20 or older, or more frequently if you have other risk factors. 

If you’re diagnosed with high cholesterol, your doctor will work with you to create a treatment plan, including how often you should come in for checkups.

However, if anything in your lifestyle or medical history changes, or if you feel the plan is no longer working, see them as soon as possible so they can help you make adjustments.

How K Health Can Help

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K Health’s AI-powered app is based on 20 years of clinical data.

Frequently Asked Questions

Can one meal raise cholesterol?
Although certain foods and nutrients can positively or negatively impact cholesterol, one single meal will not raise your cholesterol. What matters is your overall diet. If you regularly consume foods high in saturated and trans fats, you may increase your cholesterol levels.
Will exercise help lower cholesterol?
Yes, both aerobic exercise and resistance training have been shown to help lower cholesterol.
Can having lower cholesterol be dangerous?
For most people, a lower total and LDL cholesterol is best. However, very low total cholesterol and LDL cholesterol have been associated with a variety of health problems, including cancer, hemorrhagic stroke, depression, and anxiety. Doctors are still not sure why this is, and the preliminary data shows these complications are rare.

K Health articles are all written and reviewed by MDs, PhDs, NPs, or PharmDs and are for informational purposes only. This information does not constitute and should not be relied on for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment.

K Health has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references.

Terez Malka, MD

Dr. Terez Malka is a board-certified pediatrician and emergency medicine physician.

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