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:
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.
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:
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.
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.
American Diabetes Association. Standards of medical care in diabetes -- 2014. Diabetes Care. 2014;37 Suppl 1:S14-S80.
Heimburger DC. Nutrition's interface with health and disease. In: Goldman L, Schafer AI, eds. CecilMedicine. 24th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 220.
Mosca L, et al. Evidence-based guidelines for cardiovascular disease prevention in women: 2011 update. Circulation. 2011;123:1243-1262.
Mozaffarian D. Nutrition and cardiovascular disease. In: Bonow RO, Mann DL, Zipes DP, Libby P, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 9th ed. Philadelphia, PA: Elsevier Saunders; 2011:chap 48.
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.