HDL cholesterol, or high-density lipoprotein cholesterol, is the good cholesterol. The higher HDL cholesterol is, the less risk level you’re at concerning a heart disease.
The ideal range of HDL cholesterol is >1.04mmol/L or >40mg/dL, If the HDL cholesterol level is lower than 0.91mmol/L or 35mg/dL, it’s considered below normal range.
In clinic, patients at perfectly normal Total Cholesterol level but much lower HDL cholesterol level may have heart disease. A case is a 65 male with Acute myocardial infarction, the patient had total cholesterol at 168mg/dl, which is totally normal, but hdl cholesterol at 6.7mg/dl, much lower than 35mg/dl bottom line.
However, when a person has normal HDL cholesterol, but abnormal Total cholesterol, is he or she free of heart disease? The answer is NO.
Check more with Total cholesterol and heart disease.