A good total cholesterol number for adults is below 200 mg/dL, with LDL (the “bad” kind) below 100 mg/dL and HDL (the “good” kind) above 40 mg/dL for men or above 50 mg/dL for women. But those numbers shift depending on your age, sex, and heart disease risk, so a single “good” number doesn’t tell the whole story. Your lipid panel includes several values, and understanding what each one means gives you a much clearer picture of your cardiovascular health.
LDL Cholesterol: The Number That Matters Most
LDL cholesterol is the value doctors pay the most attention to because it’s the type that builds up inside artery walls and forms plaque. For most adults age 20 and older, an LDL below 100 mg/dL is considered optimal. Children and teens have a slightly higher threshold, with levels below 110 mg/dL considered healthy.
If you already have heart disease or are at high risk for it (a 10% or greater chance of a cardiovascular event in the next 10 years), the targets get significantly tighter. The latest joint guidelines from the American College of Cardiology and American Heart Association, published in 2026, recommend an LDL goal below 70 mg/dL for high-risk individuals. For people who have already had a heart attack, stroke, or other cardiovascular event, the target drops even further to below 55 mg/dL. These aggressive goals reflect strong evidence that lower LDL levels translate directly to fewer repeat events.
Your doctor determines your risk category based on factors like age, blood pressure, smoking status, diabetes, and family history. If you’re a generally healthy adult with no major risk factors, keeping LDL below 100 mg/dL is a solid benchmark.
HDL Cholesterol: Higher Is Better, to a Point
HDL cholesterol works like a cleanup crew, carrying excess cholesterol away from your arteries and back to the liver for disposal. You want this number to be higher. Men should aim for an HDL above 40 mg/dL, and women should aim above 50 mg/dL. An HDL of 60 mg/dL or above is generally considered protective against heart disease.
There’s an interesting twist at the high end, though. Research published in an American Heart Association journal found that HDL levels above 80 mg/dL may lose their protective benefit. In men with high blood pressure, very high HDL was actually associated with increased cardiovascular risk. The relationship between HDL and heart health follows a U-shaped curve: too low is clearly harmful, but extremely high levels don’t keep adding protection and may signal other issues. For most people this isn’t a practical concern, since very few have HDL that high without genetic reasons, but it’s worth knowing that more isn’t always better.
Triglycerides
Triglycerides are a type of fat in your blood that your body uses for energy. When you eat more calories than you need, your body converts the excess into triglycerides and stores them in fat cells. A healthy triglyceride level is below 150 mg/dL. Between 150 and 199 mg/dL is borderline high, 200 to 499 mg/dL is high, and anything above 500 mg/dL is very high and raises the risk of a dangerous inflammation of the pancreas.
Triglycerides respond strongly to lifestyle factors. Refined carbohydrates, sugary drinks, alcohol, and excess calories all push levels up. Losing even a modest amount of weight, cutting back on sugar, and exercising regularly can bring triglycerides down substantially, sometimes by 20 to 30 percent.
Non-HDL Cholesterol: A Useful Snapshot
Many clinicians now consider non-HDL cholesterol one of the more useful numbers on a lipid panel. It captures all the cholesterol types that contribute to artery damage, not just LDL. Calculating it is simple: subtract your HDL from your total cholesterol. If your total cholesterol is 180 and your HDL is 60, your non-HDL is 120.
The general target for non-HDL cholesterol is no more than 30 mg/dL above your LDL goal. For most adults, that means below 130 mg/dL. If your doctor has set a tighter LDL target of below 70 (because of existing heart disease or high risk), your non-HDL goal would be below 100. For children and teens, non-HDL below 120 mg/dL is healthy, while levels at or above 160 mg/dL are considered high.
Cholesterol Numbers for Children and Teens
Kids and teens have their own set of targets. For anyone 19 or younger, a total cholesterol below 170 mg/dL, LDL below 110 mg/dL, and HDL above 45 mg/dL are considered healthy. These numbers matter because cholesterol buildup starts earlier than most people realize, and children with significantly elevated levels may carry that risk into adulthood.
Doctors typically consider medication for children age 10 and older only when LDL exceeds 190 mg/dL despite six months of diet and exercise changes, or when LDL is above 160 mg/dL combined with a high risk profile for heart disease. For the vast majority of kids, improving diet and increasing physical activity are enough to bring numbers into a healthy range.
Do You Need to Fast Before a Test?
Traditionally, you’d be told to fast for 9 to 12 hours before a cholesterol test. That’s changing. A large body of evidence reviewed in the Journal of the American College of Cardiology found that nonfasting lipid panels are accurate enough for clinical use, and many countries and medical organizations now accept them. Eating before a test raises triglycerides by an average of about 26 mg/dL and lowers LDL readings by about 8 mg/dL. HDL is largely unaffected.
Those shifts are small enough that they don’t change clinical decisions in most cases. A doctor is looking for the difference between, say, triglycerides of 176 and 440, not between 176 and 202. That said, if your triglycerides come back borderline on a nonfasting test, your doctor may ask for a repeat fasting test to get a more precise reading.
Quick Reference by Number
- Total cholesterol: Below 200 mg/dL is desirable for adults
- LDL cholesterol: Below 100 mg/dL for most adults, below 70 or 55 for those at higher risk
- HDL cholesterol: Above 40 mg/dL for men, above 50 mg/dL for women
- Triglycerides: Below 150 mg/dL
- Non-HDL cholesterol: Below 130 mg/dL for most adults
These numbers give you a starting framework, but your individual targets may differ based on your overall health profile. A single elevated number doesn’t necessarily mean you need medication. Cholesterol management is about the full picture: your numbers, your risk factors, and how they trend over time.