For most adults, LDL cholesterol should be below 100 mg/dL. But your personal target could be significantly lower depending on your heart disease history, diabetes status, and overall cardiovascular risk. The 2026 guidelines from the American College of Cardiology and American Heart Association set targets as low as 55 mg/dL for people at the highest risk.
General LDL Targets by Age
For adults age 20 and older, a healthy LDL level is below 100 mg/dL. For children and teens age 19 or younger, the threshold is slightly more lenient at below 110 mg/dL. These are starting points for people without major risk factors. If you have diabetes, a history of heart attack or stroke, or a high estimated risk of cardiovascular disease over the next decade, your target drops considerably.
Targets for People With Heart Disease
If you’ve already had a cardiovascular event like a heart attack, stroke, or have been diagnosed with artery disease, the goals become much more aggressive. The current guideline target is an LDL below 70 mg/dL, with treatment aimed at cutting your LDL by at least 50% from its starting point.
For people at very high risk (meaning those with a history of multiple cardiovascular events or other compounding factors), the target drops even further to below 55 mg/dL. Reaching that level typically requires medication beyond a statin alone. Your doctor may add a second cholesterol-lowering drug to get there.
Targets for People With Diabetes
Diabetes raises cardiovascular risk on its own, so the targets are tighter than for the general population. Adults aged 40 to 75 with diabetes but no established heart disease should aim for an LDL below 100 mg/dL. If you have diabetes plus multiple additional risk factors (high blood pressure, smoking, kidney disease, or a family history of early heart disease), the target tightens to below 70 mg/dL.
How Risk Level Shapes Your Target
If you don’t have heart disease or diabetes, your LDL target depends largely on your 10-year risk of a cardiovascular event. Doctors estimate this using a calculator that factors in your age, sex, race, blood pressure, cholesterol levels, smoking status, and whether you’re on blood pressure medication. The result places you in one of four categories:
- Low risk (below 5%): Lifestyle changes are the primary focus. Keeping LDL under 100 mg/dL is generally sufficient.
- Borderline risk (5% to 7.4%): Diet and exercise remain the first approach, with medication considered if other risk factors tip the scale.
- Intermediate risk (7.5% to 19.9%): Medication is typically recommended when LDL is 70 mg/dL or higher, with a goal of reducing LDL by at least 30%.
- High risk (20% or above): Treatment should reduce LDL by at least 50%, often pushing the target well below 100 mg/dL.
Your doctor can run this calculation during a routine visit. It’s recommended for adults aged 40 to 75 who don’t already fall into the heart disease or diabetes categories.
How Much Can Lifestyle Changes Lower LDL?
Diet and exercise can reduce LDL, but the results vary widely from person to person. Some people see meaningful drops; others barely budge despite real effort. As one Harvard cardiologist put it, some patients see modest reductions after changing their diet, and some simply do not. The response depends on genetics, how high your LDL was to begin with, and how dramatically you change your eating pattern.
The dietary changes with the strongest evidence include reducing saturated fat (red meat, full-fat dairy, fried foods), increasing soluble fiber (oats, beans, lentils, fruits), and replacing saturated fats with unsaturated ones (olive oil, nuts, avocado). Regular aerobic exercise helps modestly with LDL and has larger effects on other lipid markers and overall cardiovascular fitness.
When lifestyle changes aren’t enough, statins are the most commonly prescribed medications. They lower LDL by 25% to 55% depending on the dose and specific drug. For someone starting at 150 mg/dL, that could mean reaching anywhere from 67 to 112 mg/dL on a statin alone.
What About Non-HDL Cholesterol?
You may also see a “non-HDL cholesterol” number on your lab results. This captures LDL plus other harmful cholesterol particles, giving a broader picture of your risk. The simple rule: your non-HDL target is 30 mg/dL higher than your LDL target. So if you’re aiming for an LDL below 100, your non-HDL should be below 130. If your LDL target is below 70, non-HDL should be below 100.
LDL Targets for Children and Teens
For anyone 19 or younger, an LDL below 110 mg/dL is considered healthy. Cholesterol-lowering medication is rarely used in this age group, but it may be considered if a child’s LDL exceeds 190 mg/dL despite six months of diet and exercise changes, or if it’s above 160 mg/dL and they have additional risk factors for heart disease. These situations typically involve inherited conditions that cause unusually high cholesterol from a young age.