How to lower cholesterol before a blood test

Trying to alter the result at the last minute can make it less representative of your usual health. A cholesterol panel may include total cholesterol, LDL cholesterol, HDL cholesterol and triglycerides. Your clinician interprets these together with your medical history and cardiovascular risk.

Cholesterol is a fatty substance carried in the blood. LDL can contribute to fatty deposits in artery walls, while HDL helps transport cholesterol for processing. One result is not a diagnosis by itself, and a result outside the target range does not explain its own cause.

Recent meals, alcohol, illness, fasting status, medicines and changes in weight or activity can affect interpretation. Some people need a fasting sample and others do not, so use the instructions from the testing service rather than relying on advice from a previous appointment.

Eat normally in the days before the test unless your clinician or laboratory gives different instructions. Do not stop a prescribed statin or other medicine to change the reading. Tell the clinician about supplements, recent illness, pregnancy, major dietary changes and any difficulty following the preparation instructions.

If the test requires fasting, confirm whether water is allowed and when to stop food or drinks. Avoid strenuous, unfamiliar exercise immediately beforehand, arrive hydrated if permitted, and reschedule or ask for advice if you are unwell. Lasting cholesterol improvement usually comes from an individual plan involving food choices, physical activity, weight management when relevant and prescribed treatment.

A cholesterol test is usually routine, but seek urgent medical help for chest pressure, severe breathlessness, sudden weakness on one side, or trouble speaking. These symptoms need prompt assessment and should not wait for a planned blood test.

Arrange a routine review if a result is unexpectedly high, if you have a strong family history of early heart disease, or if you have diabetes, high blood pressure or kidney problems. The clinician may repeat the test, review possible causes and decide whether treatment or monitoring is appropriate.

Ask whether your sample needs fasting, which medicines or supplements should be recorded, and whether recent illness could affect the reading. You can also ask which cholesterol measure matters most for your personal risk, when results will be reviewed, and what practical change would be safest to start first.