Does very high HDL cholesterol always protect the heart?
No. HDL is called “good cholesterol” because of its role in cholesterol transport, but a very high number does not guarantee extra protection. Interpret it with LDL and overall cardiovascular risk; one HDL value cannot establish immunity from heart disease or inevitable harm.
Details
Why is the number insufficient?
The cholesterol carried by HDL particles does not describe all their functions. Studies have associated very high levels with some adverse outcomes, but association does not prove that lowering the HDL number itself improves health.
What should be reviewed?
Review the full lipid profile, medicines, possible inherited factors and family history. Unusual results or premature heart disease in relatives may need further assessment. High HDL does not cancel the risk from high LDL.
Do not start drinking alcohol or taking supplements to raise HDL, or stop lipid treatment because it is high. Focus on activity, a balanced diet, blood-pressure and diabetes management, and avoiding tobacco within your care plan.
Related reading: When do I need a triglyceride test, and what does a high result mean?.