Is a Total Cholesterol Level of 6.5 mmol/L Serious?

A total cholesterol level of 6.5 mmol/L is considered to be relatively high. The normal range for total cholesterol is between 3.0 and 5.2 mmol/L. Therefore, a reading of 6.5 mmol/L may indicate elevated levels of either low-density lipoprotein (LDL) cholesterol or triglycerides.

Elevated LDL cholesterol is a significant independent risk factor for cardiovascular and cerebrovascular diseases. This condition can lead to the formation of plaque in the carotid arteries or other blood vessels, increasing the likelihood of heart attacks, strokes, and other related conditions. Similarly, high triglyceride levels are associated with an increased risk of pancreatitis. Thus, a total cholesterol level of 6.5 mmol/L should be taken seriously and may require medical intervention.

For individuals with a history of coronary artery disease, it is generally recommended to keep LDL cholesterol levels below 2.6 mmol/L. In patients who also have diabetes, the target LDL level should be even lower—below 1.8 mmol/L. Triglycerides should ideally be maintained below 3.0 mmol/L, with a target of less than 1.7 mmol/L for optimal health. Adopting a heart-healthy diet that excludes organ meats, shellfish, and other high-cholesterol foods can help manage cholesterol levels effectively. In many cases, lifestyle changes combined with lipid-lowering medications may be necessary to achieve these targets and reduce the risk of complications.