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Home Health News Diabetes: Keeping Up With Your Active Life

Diabetes: Keeping Up With Your Active Life

Diabetes and Cholesterol Screening


This content is selected and controlled by WebMD's editorial staff and is funded by Bayer HealthCare

WebMD Medical Reference

Reviewed By Brunilda Nazario, MD

Whether or not you have diabetes, cholesterol can play a big role in your health. Cholesterol is a waxy, fat-like substance made in the liver and found in certain foods, such as food from animals, like dairy products, eggs, and meat.

The body needs some cholesterol in order to function properly. The body's cell walls, or membranes, need cholesterol and the body uses cholesterol to produce hormones, vitamin D, and the bile acids that help to digest fat. But, the body needs only a small amount of cholesterol to meet its needs. When too much cholesterol is present health problems such as coronary heart disease may develop.

People with diabetes should have their blood cholesterol and triglyceride levels checked at least once every year. Since having diabetes already puts you at risk for heart disease, it's especially important to keep your cholesterol levels in check.

What Is Coronary Heart Disease?

When too much cholesterol is present, plaque (a thick, hard deposit) may form in the body's arteries narrowing the space for blood to flow to the heart. Over time, this buildup causes atherosclerosis (hardening of the arteries) which can lead to heart disease.

When not enough oxygen-carrying blood reaches the heart, chest pain -- called angina -- can result. If the blood supply to a portion of the heart is completely cut off by total blockage of a coronary artery, the result is a heart attack. This is usually due to a sudden closure from a blood clot forming on top of a previous narrowing.

Types of Blood Fat

Cholesterol travels through the blood attached to a protein -- this cholesterol-protein package is called a lipoprotein. Lipoproteins are classified as high density, low density, or very low density, depending on how much protein there is in relation to fat. Another blood fat or lipid is called triglyceride.

  • Low density lipoproteins (LDL): LDL, also called "bad" cholesterol, can cause buildup of plaque on the walls of arteries. The more LDL there is in the blood, the greater the risk of heart disease.
  • High density lipoproteins (HDL): HDL, also called "good" cholesterol, helps the body get rid of bad cholesterol in the blood. The higher the level of HDL cholesterol, the better. If your levels of HDL are low, your risk of heart disease increases.
  • Triglycerides/very low density lipoprotein cholesterol (VLDL): While triglycerides are not the same as cholesterol, they are another type of fat that increases the risk of heart disease and is carried in the blood by very low density lipoproteins. Only a small amount of triglycerides is normally found in the blood; most are stored in fat tissue. VLDL is similar to LDL cholesterol in that it contains mostly fat and not much protein. A high triglyceride level, along with high LDL cholesterol, can increase the risk of heart attack.

What Factors Affect Lipid Levels?

A variety of factors can affect your cholesterol levels. They include:

  • Diet. Saturated fat and cholesterol in the food you eat increase cholesterol and triglyceride levels.
  • Weight. In addition to being a risk factor for heart disease, being overweight can also increase your cholesterol. Losing weight can help lower your LDL and total cholesterol levels, as well as increase HDL cholesterol.
  • Exercise. Regular exercise can lower LDL cholesterol and raise HDL cholesterol. You should try to be physically active for 30 minutes on most days.
  • Age and Gender. As we get older, cholesterol levels rise. Before menopause, women tend to have lower total cholesterol levels than men of the same age. After menopause, however, women's LDL levels tend to rise.
  • Heredity. Your genes partly determine how much cholesterol your body makes. High blood cholesterol can run in families.
  • Other causes. Certain medications and medical conditions can cause high cholesterol and triglyceride.

 

Screening

For a cholesterol screening, your doctor may recommend a non-fasting cholesterol test or a fasting cholesterol test. A non-fasting cholesterol test will show your total cholesterol level and may also determine your HDL cholesterol. A fasting cholesterol test, called a lipid profile or a lipoprotein analysis, will measure your triglycerides, LDL, HDL, and total cholesterol.

Your doctor may start with a non-fasting lipid panel test and then recommend a lipid profile, based on your results.

Doctors recommend your cholesterol stay below 200 and triglycerides less than 150. Here is the breakdown:

Total Cholesterol Category
Less than 200 Desirable
200 - 239 Borderline High
240 and above High

 

How Can I Lower My Cholesterol and Reduce My Risk of Heart Disease?

To lower your cholesterol and triglyceride and reduce you risk of heart disease, you should:

  • Eat low cholesterol foods. The American Heart Association recommends that you limit your average daily cholesterol intake to less than 300 milligrams. If you have heart disease, limit your daily intake to less than 200 milligrams. People can significantly lower their cholesterol and triglyceride levels by keeping their dietary intake of saturated fats low and by avoiding foods that are high in saturated fat.
  • Quit smoking. Smoking lowers HDL ("good") cholesterol levels. This trend can be reversed if you quit smoking.
  • Exercise. Exercise can result in weight loss. Being overweight or obese leads to an increase in triglyceride levels and a decrease in HDL cholesterol. In people who are inactive, HDL is typically low. Exercise and physical activity increases HDL cholesterol in some people. Even moderate-intensity activities, if done daily, can help control weight, diabetes, and high blood pressure -- all risk factors for heart disease.
  • Take medication as prescribed by your doctor. Sometimes making changes to your diet and increasing exercise is not enough to bring your cholesterol down. You may also need to take a cholesterol-lowering drug.
  • People with high triglycerides may need to substitute monounsaturated and polyunsaturated fats â€”such as those found in canola oil, olive oil or liquid margarine â€” for saturated fats. . 

What Drugs Are Used to Treat High Cholesterol and triglycerides?

Cholesterol-lowering drugs include:

  • Statins
  • Fibrates
  • Niacin
  • Bile-acid resins
  • Ezetimibe

Cholesterol-lowering medicine is most effective when combined with a low-cholesterol diet. Fibrates are best at lowering triglycerides and increasing HDL (good cholesterol) levels.