Your cholesterol numbers describe how fat moves through your blood, and each line of a lipid panel says something different about that traffic. LDL carries cholesterol into your arteries, and HDL helps clear it out. Triglycerides add a risk of their own. The labels good and bad are shortcuts that hide what each number actually does.
Here are your cholesterol levels explained with the published ranges from MedlinePlus, whose targets depend on your age, blood pressure, weight, and family history. The test itself is simple. A lipid panel is a blood draw, usually taken after 9 to 12 hours of fasting, and every number is reported in milligrams per deciliter (mg/dL).
What Is Cholesterol, and Why Does Your Body Need It?
Cholesterol is a waxy, fat-like substance that your body needs in the right amounts, according to the National Heart, Lung, and Blood Institute (NHLBI). Because fat does not dissolve in blood, cholesterol rides inside particles called lipoproteins. The genes you inherit and your lifestyle habits both play a major role in your levels, per the institute.
What Does Each Line of a Lipid Panel Measure?
Per MedlinePlus, the standard panel reports five numbers.
- Total cholesterol: all the cholesterol in your blood, LDL and HDL together.
- LDL: often called bad cholesterol, because it is the main source of cholesterol buildup and blockage in the arteries.
- HDL: often called good cholesterol, because it helps remove cholesterol from your arteries.
- Non-HDL: your total minus your HDL, a wider look at the types that raise heart risk, including VLDL.
- Triglycerides: another blood fat, not a cholesterol at all, that can raise heart disease risk, especially in women.
Which Numbers Are Considered Healthy?
MedlinePlus publishes ranges that are healthy for most adults age 20 and older.
- Total cholesterol: below 200 mg/dL.
- LDL: below 100 mg/dL.
- Non-HDL: below 130 mg/dL.
- HDL: 60 mg/dL or higher is best; below 40 counts as low for men and below 50 for women.
- Triglycerides: below 150 mg/dL, with 150 to 199 called borderline high.
Children and teens have their own scale, with total cholesterol below 170 mg/dL and LDL below 110 mg/dL for anyone 19 or younger, per the same guidance. Risk can tighten the LDL goal. Under the PREVENT risk estimator described by MedlinePlus, a high-risk adult may aim for 70 mg/dL or below, and someone with heart disease at very high risk may aim for 55 or below.
What Moves Your Numbers the Most?
Diet leads the list of factors you control. Saturated fat is the main dietary driver of a rising blood cholesterol level, per MedlinePlus, and it is concentrated in red meat, full-fat dairy, fried foods, and many processed foods. Smoking lowers your HDL, the particle that removes cholesterol from artery walls, so quitting protects that cleanup crew.
Weight and activity matter too. MedlinePlus notes that carrying extra weight tends to raise cholesterol and recommends a loss of at least 5% of body weight for people with high cholesterol who are overweight. Inactivity raises heart risk on its own, and levels also climb with age. We covered a connected angle in FDA Warns That Popular Tejocote Root Weight-Loss Supplements Contain a Toxic Plant Instead.
Some forces sit outside your control, per MedlinePlus: age, family history, sex, and ethnicity. Genes partly set how much cholesterol your body makes, and after menopause a woman's risk rises as protective hormones fall.
When Should You Talk to a Clinician About Your Numbers?
Use the ranges above as a map, then let a clinician set your personal target. MedlinePlus advises testing every 5 years for adults 21 to 65, every 1 to 2 years for men 45 to 65 and women 55 to 65, and yearly after 65. Statins enter the picture for some people, including adults 30 or older with LDL at 160 mg/dL or higher, and that call belongs to you and your provider together.
Ask about the goal, not just the result. A copy of your own panel, compared against these published ranges, turns a vague warning like high cholesterol into a number you can track between visits. Readers following this should also see FDA Warning Letter Hits Bee Supplement Maker CC Pollen.
Conclusion: The bottom line
A lipid panel is five numbers that each tell a different story: total cholesterol, LDL, HDL, non-HDL, and triglycerides, measured in mg/dL after a 9 to 12 hour fast. Desirable levels for most adults sit below 200 for total cholesterol, with HDL at 60 or higher as the best zone, per MedlinePlus. Your next step: read your own five numbers against those ranges, then set a personal target with your clinician.
