Why there is no chart by age
The document that now governs US cholesterol treatment decisions, the 2026 ACC/AHA multisociety Guideline on the Management of Dyslipidemia, starts adults 30 to 79 without atherosclerotic cardiovascular disease (ASCVD) whose LDL cholesterol is 70 to 189 mg/dL on one step: "Calculate 10-y and 30-y ASCVD risk using PREVENT-ASCVD". Inside that range the decision and the LDL goal are keyed to your calculated risk, not to which decade you are in. Which number counts as a treatment goal for you depends on your risk category, not on a lab's reference interval. Two people age 52 with the same LDL can land on opposite sides of a treatment decision because their calculated risk differs.
That is the honest answer to "what should my cholesterol be at my age": there is no guideline lookup table for it. What follows is the closest honest substitute, the actual published categories, with who each one applies to and the document it comes from.
LDL cholesterol: the current goals, and the bands that came before
One guideline now sets how LDL cholesterol is read in the US: the 2026 ACC/AHA multisociety guideline, issued by 11 societies, among them the ACC, the AHA and the National Lipid Association, and published online March 13, 2026. It "retires and replaces" the 2018 cholesterol guideline. In the guideline material we could read, it names one LDL category, severe hypercholesterolemia at 190 mg/dL or higher, and otherwise sets goals by risk group. The table sets out its LDL numbers; the second row is where age enters. Two one-page corrections to the guideline were published on June 22 and September 8, 2026, and we could not read them, so the 2026 numbers on this page are as printed before them, in the AHA's March 13, 2026 release and in ACC's reproduction of the guideline's tables and figures, read October 19, 2026.
| Population | What it means | LDL-C |
|---|---|---|
| Adults | Severe hypercholesterolemia: maximally tolerated statin, no risk calculation needed | 190 mg/dL and above |
| Adults 30 to 79 without ASCVD, primary prevention | Statin decision by 10-year PREVENT-ASCVD risk | 70 to 189 mg/dL |
| Primary prevention, 10-year PREVENT-ASCVD risk under 10% (the AHA's release names this group borderline, 3% to under 5%, or intermediate, 5% to under 10%; the guideline also sets this goal for a low-risk adult who starts a statin) | LDL-C goal, with non-HDL-C under 130 | Under 100 mg/dL |
| Primary prevention, high 10-year PREVENT-ASCVD risk (10% or more) | LDL-C goal, with at least a 50% reduction and non-HDL-C under 100 | Under 70 mg/dL |
| Clinical ASCVD, not at very high risk | LDL-C goal, with at least a 50% reduction and non-HDL-C under 100 | Under 70 mg/dL |
| Clinical ASCVD at very high risk | LDL-C goal, with at least a 50% reduction and non-HDL-C under 85; add ezetimibe and/or a PCSK9 antibody if not reached | Under 55 mg/dL |
Older numbers still circulate. The bands below come from the 2001 NCEP Adult Treatment Panel III (ATP III) classification (NIH Publication No. 01-3670, May 2001), and many readers still see them online. NHLBI's own ATP III page now carries this notice: "On November 12, 2013, new clinical practice guidelines on this topic were published online by the American College of Cardiology (ACC) and the American Heart Association (AHA)." We found none of these labels in the 2026 guideline material we could read: there, 160 to 189 mg/dL appears only as a risk enhancer and a decision point (see below), and 190 and above is severe hypercholesterolemia. The bands are not sex-specific: each row applies to "adults," not to men or women separately.
| Category | LDL-C |
|---|---|
| Optimal | Under 100 mg/dL |
| Near optimal / above optimal | 100 to 129 mg/dL |
| Borderline high | 130 to 159 mg/dL |
| High | 160 to 189 mg/dL |
| Very high | 190 mg/dL and above |
HDL cholesterol: where men and women actually differ
This is the one place these guidelines genuinely split a number by sex. The retired 2001 ATP III low and high bands are not sex-specific, but the AHA/NHLBI metabolic syndrome criterion sets a different cutoff for men and women because women's HDL-C runs higher on average, so the same absolute number signals more risk in a woman. The 2026 ACC/AHA guideline's table of risk enhancers carries no HDL cut.
| Population | Category | HDL-C |
|---|---|---|
| Adults (ATP III) | Low, a major risk factor | Under 40 mg/dL |
| Adults (ATP III) | High, a negative risk factor | 60 mg/dL and above |
| Men (metabolic syndrome criterion) | Reduced HDL-C | Under 40 mg/dL |
| Women (metabolic syndrome criterion) | Reduced HDL-C | Under 50 mg/dL |
Drug trials that raised HDL-C did not reduce heart attacks, so no guideline sets a target to raise it with medication. Full detail is on the HDL cholesterol reference page.
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Total cholesterol: why no current guideline labels it
Total cholesterol is the sum of LDL, HDL and the triglyceride carriers, which is why it mixes a risk-raising signal with a risk-lowering one. We found no current US guideline that labels a total cholesterol range: the 2026 ACC/AHA guideline sets its goals for LDL cholesterol, non-HDL cholesterol and apoB, and in the tables and figures we could read, the total has no cut point of its own: it is an input to the PREVENT risk equations and the starting point for non-HDL cholesterol (total minus HDL). The numbers you will see elsewhere, including the one childhood-versus-adult split, come from older or consumer sources:
| Source | What it says | Status |
|---|---|---|
| 2026 ACC/AHA/Multisociety Guideline on the Management of Dyslipidemia | No total cholesterol range; the total is an input to the PREVENT risk equations | Current |
| NCEP ATP III (NHLBI, May 2001), adults | Under 200 mg/dL desirable; 200 to 239 borderline high; 240 and above high | Retired: NHLBI notes new ACC/AHA guidelines were published on November 12, 2013 |
| MedlinePlus (National Library of Medicine consumer page, last updated October 7, 2026) | Less than 200 mg/dL desirable at 20 and older; less than 170 mg/dL at 19 and younger | Names no body that set the number |
Two people with the identical total can carry very different risk depending on the split between LDL and HDL. No guideline sets treatment decisions on the total alone. The actionable numbers are on the LDL and HDL reference pages, and the full detail on total cholesterol is on its own reference page.
Triglycerides
| Population | Category | Triglycerides |
|---|---|---|
| Adults, fasting (ATP III) | Normal | Under 150 mg/dL |
| Adults, fasting (ATP III) | Borderline high | 150 to 199 mg/dL |
| Adults, fasting (ATP III) | High | 200 to 499 mg/dL |
| Adults, fasting (ATP III) | Very high | 500 mg/dL and above |
None of these rows differ by sex or by age band either; they apply to adults generally. The 2026 ACC/AHA guideline's table of risk enhancers counts triglycerides persistently at 175 mg/dL or higher on a nonfasting sample, or 150 or higher fasting. Very high triglycerides (500 mg/dL and above) carry pancreatitis risk and are managed as a separate, urgent problem. Full detail, including the 2026 risk-enhancer row, is on the triglycerides reference page.
What age actually changes
Age is not irrelevant, it just does not set a target number by itself. Three genuine age markers exist in this guidance: ACC's Learning Center summary of the 2026 guideline describes universal lipid screening for adults starting at age 19, every 5 years; the guideline's primary-prevention risk calculation covers adults 30 to 79; and the USPSTF ties statin-use decisions to adults 40 to 75 with risk factors. None of those is a target LDL, HDL or triglyceride value for a given decade of life; they are ages at which screening starts or a risk conversation applies.
Frequently asked questions
What is a normal cholesterol level by age?
No major cholesterol guideline sets targets by age. The 2026 ACC/AHA guideline's LDL goals (under 100, 70 or 55 mg/dL) and its severe hypercholesterolemia line (190 mg/dL and above) all apply by risk group and clinical situation, not by decade of life. Age enters through the guideline's risk calculation, which covers adults 30 to 79, and through the USPSTF's statin recommendation for ages 40 to 75.
Is a different cholesterol level normal for men and women?
For LDL, total cholesterol and triglycerides, the sourced categories are the same for men and women; each is listed as applying to adults generally. HDL is the exception: the AHA/NHLBI metabolic syndrome criterion sets reduced HDL at under 40 mg/dL for men and under 50 mg/dL for women.
What cholesterol number requires a statin, regardless of age?
An LDL of 190 mg/dL or higher. The 2026 ACC/AHA guideline calls it severe hypercholesterolemia; its algorithm for these adults first rules out or addresses secondary causes and calls for screening first-degree relatives and completing genetic testing, then says "Initiate maximally tolerated statin". ACC lists it as a statin indication that needs no further risk assessment.
Why does total cholesterol have an age cutoff, if the others do not?
Not in any current US guideline we found. MedlinePlus, the National Library of Medicine's consumer site, lists less than 200 mg/dL as a desirable level for adults 20 and older and less than 170 for those 19 and younger (page last updated October 7, 2026), but it does not name the body that set either number. That is a childhood-versus-adult split, not a decade-by-decade chart, and in the 2026 ACC/AHA guideline's tables and figures we could read, total cholesterol has no cut point of its own and enters as a risk-calculator input and as the starting point for non-HDL cholesterol.
When to talk with a clinician
Before starting or stopping a statin, and before treating any single lipid number in isolation. A 10-year PREVENT-ASCVD risk estimate is the number the 2026 guideline's primary-prevention statin decision hangs on for adults 30 to 79 without ASCVD whose LDL is 70 to 189 mg/dL, and a clinician is the one who can calculate it with you.
