Should you fast before your cholesterol test?
The truth is, your cholesterol can be tested without fasting. However,
experts agree that fasting ahead of time produces the most accurate results. This is because your low-density lipoproteins (LDL) — also known as “bad” cholesterol — may be affected by what you’ve recently eaten. Your levels of triglycerides (another type of fat in your blood) may also be affected by a recent meal.
But you don’t need to decide whether or not to fast; your doctor will tell you if you need to. If they say you should fast, they’ll likely suggest that you avoid eating for
9 to 12 hours before your test.
For this reason, cholesterol tests are often scheduled in the morning. That way, you don’t have to spend a whole day hungry while waiting to have your test.