Two related terms, cholesterol and hyperlipidemia, are sometimes confused for each other. There are key differences and it is crucial to understand the distinction between the two as they relate to cardiovascular health. 

Cholesterol is a waxy substance found in your body and is necessary for the proper functioning of cells. It plays a vital role in the production of hormones, vitamin D, and bile acids that aid in digestion. Cholesterol can be obtained from two sources: your body produces it naturally, and you can also consume it through certain foods.

On the other hand, hyperlipidemia refers to an elevated level of lipids (fats) in the bloodstream. Lipids include cholesterol and triglycerides, which are another type of fat. Hyperlipidemia is a broad term that encompasses high cholesterol levels as well as high triglyceride levels.

There are different types of cholesterol. You may have heard of some types referred to as “good” cholesterol, while others are considered “bad” cholesterol. Here are the key differences:

Bad cholesterol
Low-density lipoprotein (LDL) and very low density lipoprotein (VLDL) cholesterol are often referred to as "bad" cholesterol, as high levels can contribute to the buildup of plaque in your arteries. This can increase the risk of heart disease and stroke. 

Good cholesterol
High-density lipoprotein (HDL) cholesterol, on the other hand, is often called "good" cholesterol as it helps remove excess cholesterol from the bloodstream, reducing the risk of cardiovascular problems. A high total cholesterol may not be a bad thing if the elevation is caused by high levels of HDL cholesterol. 

Hyperlipidemia, therefore, is a combination of high levels of LDL and VLDL cholesterol, high triglycerides, and low levels of HDL cholesterol. These lipid abnormalities can occur due to a combination of genetic factors, diet, physical inactivity, obesity and certain medical conditions.

Managing hyperlipidemia is fundamental to maintaining cardiovascular health. Lifestyle modifications, such as adopting a healthy diet, engaging in regular physical activity, and maintaining a healthy weight, are key components of treatment. In many cases, particularly if there are other risk factors for heart disease, medications called statins may be prescribed to reduce the risk. If the triglycerides are elevated, additional medicines or dietary interventions may be needed also (including fibrates, niacin, and omega-3 fatty acids, as found in fish oils). 

Regular monitoring of lipid levels through blood tests is essential in managing hyperlipidemia. Your healthcare provider will evaluate your lipid profile, which includes measuring total cholesterol, LDL cholesterol, HDL cholesterol, and triglyceride levels, to assess your cardiovascular risk and develop an appropriate treatment plan.

If you have concerns about your lipid levels or cardiovascular health, consult with a healthcare professional. Your HealthTap doctor can provide personalized guidance, help you understand your lipid profile, and assist you in making informed decisions to optimize your heart health.