Your body needs cholesterol to work well. But cholesterol levels that are too high can harm you.
Cholesterol is measured in milligrams per deciliter (mg/dL). Extra cholesterol in your blood builds up inside the walls of your blood vessels. This buildup is called plaque, or atherosclerosis. Plaque reduces or stops blood flow. This can cause a:
Your Cholesterol Numbers
All men should have their blood cholesterol levels tested every 5 years, starting at age 35. All women should do the same, starting at age 45. Many people should have their blood cholesterol levels tested at a younger age, possibly as early as age 20, if they have risk factors for heart disease. Have your cholesterol checked more often (probably every year) if you have:
A blood cholesterol test measures the level of total cholesterol. This includes HDL (good) cholesterol and LDL (bad) cholesterol.
Your LDL level is what doctors watch most closely. You want it to be low. If it gets too high, you will need to treat it.
- Eating a healthy diet
- Losing weight (if you are overweight)
You may also need medicine to lower your cholesterol.
You want your HDL cholesterol to be high. Exercise can help raise it.
It is important to eat right, keep a healthy weight, and exercise, even if:
- You do not have heart disease or diabetes
- Your cholesterol levels are in the normal range
These healthy habits may help prevent future heart attacks and other health problems.
Eat foods that are low in fat. These include whole grains, fruits, and vegetables. Using low-fat toppings, sauces, and dressings will help.
Look at food labels. Avoid foods that are high in saturated fat. Eating too much of this type of fat can lead to heart disease.
- Choose lean protein foods, such as soy, fish, skinless chicken, very lean meat, and fat-free or 1% dairy products.
- Look for the words "hydrogenated", "partially hydrogenated", and "trans fats" on food labels. DO NOT eat foods with these words in the ingredients lists.
- Limit how much fried food you eat.
- Limit how many prepared baked goods (donuts, cookies, and crackers) you eat. They may contain a lot of fats that are not healthy.
- Eat fewer egg yolks, hard cheeses, whole milk, cream, ice cream, and butter.
- Eat less fatty meat and smaller portions of meat, in general.
- Use healthy ways to cook fish, chicken, and lean meats, such as broiling, grilling, poaching, and baking.
Eat foods that are high in fiber. Good fibers to eat are oats, bran, split peas and lentils, beans (kidney, black, and navy beans), some cereals, and brown rice.
Learn how to shop for, and cook, foods that are healthy for your heart. Learn how to read food labels to choose healthy foods. Stay away from fast foods, where healthy choices can be hard to find.
Get plenty of exercise. And talk with your doctor about what kinds of exercises are best for you.
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Pencina MJ, Navar-Boggan AM, D'Agostino RB Sr, Williams K, Neely B, Sniderman AD, Peterson ED. Application of new cholesterol guidelines to a population-based sample. N Engl J Med. 2014 Apr 10;370(15):1422-1431. Epub 2014 Mar 19.
Stone NJ, Robinson J, Lichtenstein AH, Bairey Merz N, Lloyd-Jones DM, et al. 2013 ACC/AHA Guideline on the Treatment of Blood Cholesterol to Reduce Atherosclerotic Cardiovascular Risk in Adults: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation. 2013. Available at: circ.ahajournals.org/content/early/2013/11/11/01.cir.0000437738.63853.7a.full.pdf. Accessed June 30, 2014.
- Angioplasty and stent placement - carotid artery
- Angioplasty and stent placement -- peripheral arteries
- Cardiac ablation procedures
- Carotid artery surgery
- Heart bypass surgery
- Heart bypass surgery - minimally invasive
- Heart failure - overview
- Heart pacemaker
- High blood cholesterol levels
- High blood pressure
- Implantable cardioverter-defibrillator
- Peripheral artery bypass - leg
- Peripheral artery disease - legs
- Abdominal aortic aneurysm repair - open - discharge
- Angina - discharge
- Angina - what to ask your doctor
- Angioplasty and stent - heart - discharge
- Angioplasty and stent placement - carotid artery - discharge
- Angioplasty and stent placement - peripheral arteries - discharge
- Aortic aneurysm repair - endovascular - discharge
- Aspirin and heart disease
- Atrial fibrillation - discharge
- Being active when you have heart disease
- Butter, margarine, and cooking oils
- Cardiac catheterization - discharge
- Carotid artery surgery - discharge
- Cholesterol - what to ask your doctor
- Controlling your high blood pressure
- Dietary fats explained
- Fast food tips
- Heart attack - discharge
- Heart attack - what to ask your doctor
- Heart bypass surgery - discharge
- Heart bypass surgery - minimally invasive - discharge
- Heart disease - risk factors
- Heart failure - discharge
- Heart failure - fluids and diuretics
- Heart failure - home monitoring
- Heart failure - what to ask your doctor
- High blood pressure - what to ask your doctor
- How to read food labels
- Low-salt diet
- Managing your blood sugar
- Mediterranean diet
- Peripheral artery bypass - leg - discharge
- Stroke - discharge
Review Date 10/26/2014
Updated by: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.