Home / Dafeepedia / How to Read Your Cholesterol Results
How to Read Your Cholesterol Results: LDL, HDL, Triglycerides and What They Mean
What is a lipid panel?
A lipid panel is a blood test that measures four types of fat circulating in your blood: LDL cholesterol, HDL cholesterol, total cholesterol, and triglycerides. It is the standard tool used by clinicians to assess cardiovascular risk. In France, it is recommended every five years for adults with no known risk factors, and more frequently for those with family history, hypertension, diabetes, or significant lifestyle risk factors.
The result you receive is not one number — it is a profile. Each value carries meaning only in relation to the others, and in relation to your age, sex, hormonal status, and personal risk history. A single number in isolation can be misleading. This is the most important thing to understand about your lipid panel.
What does LDL cholesterol mean?
LDL (low-density lipoprotein) cholesterol is the primary marker of cardiovascular risk in a standard lipid panel. It is often called "bad" cholesterol because LDL particles can penetrate arterial walls, accumulate as plaque, and progressively narrow the arteries — a process called atherosclerosis that increases the risk of heart attack and stroke.
The 2026 ACC/AHA Guideline on the Management of Dyslipidemia — the most comprehensive international update to lipid management guidelines in nearly a decade — restored explicit LDL treatment targets based on individual cardiovascular risk level:
- LDL target below 100 mg/dL (2.6 mmol/L): for adults at borderline or intermediate risk in primary prevention
- LDL target below 70 mg/dL (1.8 mmol/L): for adults at high risk in primary prevention, or with established ASCVD not at very high risk
- LDL target below 55 mg/dL (1.4 mmol/L): for adults in secondary prevention at very high risk of ASCVD events
These are treatment goals — the LDL level your clinician aims to achieve through lifestyle and, if necessary, medication — not thresholds that define risk in isolation.
In France, the clinical threshold for elevated LDL used by Santé Publique France is 1.6 g/L (160 mg/dL). Nearly 1 in 5 French adults (19.3%) exceeds this threshold according to the Esteban national health survey.
What is a normal LDL cholesterol level?
A normal LDL cholesterol level is below 100 mg/dL (2.6 mmol/L). Above that threshold, LDL is classified as near optimal, borderline high, high, or very high — depending on how far it exceeds that level. These reference ranges are distinct from LDL treatment targets, which are the lower goals clinicians aim to achieve through lifestyle or medication in people who already have elevated cardiovascular risk.
The standard clinical reference ranges for LDL cholesterol are:
— Below 100 mg/dL (2.6 mmol/L): Optimal
— 100–129 mg/dL (2.6–3.3 mmol/L): Near optimal
— 130–159 mg/dL (3.4–4.1 mmol/L): Borderline high
— 160–189 mg/dL (4.1–4.9 mmol/L): High
— 190 mg/dL and above (4.9+ mmol/L): Very high
What does HDL cholesterol mean?
HDL (high-density lipoprotein) cholesterol is the marker you want to be high. HDL particles transport excess cholesterol from peripheral tissues and arterial walls back to the liver for processing and elimination — a process called reverse cholesterol transport.
HDL is the only lipid marker with clear sex-based differences in clinical targets:
- Women: HDL above 1.3 mmol/L (50 mg/dL) is generally considered protective; below 1.3 mmol/L is considered a risk factor
- Men: HDL above 1.0 mmol/L (40 mg/dL) is the clinical minimum; above 1.6 mmol/L (60 mg/dL) is considered cardioprotective
However, very high HDL (above 2.0 mmol/L / 80 mg/dL) is not necessarily beneficial. Recent research has shown that extremely elevated HDL may be associated with dysfunction in the reverse cholesterol transport pathway rather than enhanced protection.
The ratio between total cholesterol and HDL — or between LDL and HDL — is increasingly used alongside absolute values. A total cholesterol/HDL ratio above 5 is considered elevated cardiovascular risk; below 4 is generally considered acceptable.
What does total cholesterol mean?
Total cholesterol is the sum of all cholesterol carried by all lipoproteins in the blood — LDL, HDL, VLDL, and others. A total cholesterol above 200 mg/dL (5.2 mmol/L) is traditionally considered elevated.
Total cholesterol is the least informative number in a lipid panel when read in isolation. It is mathematically possible to have a "normal" total cholesterol with a dangerously high LDL and very low HDL — a pattern that would be missed if only the total were examined.
This is precisely what your article "Why does your cholesterol number tell you so little?" addresses: the cholesterol number your doctor mentions is often the total, which obscures more than it reveals. The individual components — and their ratios — are what matter clinically.
What do triglycerides mean in a lipid panel?
Triglycerides are the most common form of fat stored in the body. In a lipid panel, they reflect recent dietary fat and carbohydrate intake, as well as metabolic efficiency. A triglyceride level below 150 mg/dL (1.7 mmol/L) is generally considered normal.
Elevated triglycerides (above 200 mg/dL / 2.3 mmol/L) are an independent cardiovascular risk factor — particularly when combined with low HDL and elevated LDL, a pattern called atherogenic dyslipidaemia. Triglycerides above 500 mg/dL (5.6 mmol/L) require urgent clinical attention due to the risk of acute pancreatitis.
Triglycerides are significantly influenced by short-term dietary intake. A fasting lipid panel (12 hours without food before the blood draw) provides the most clinically reliable triglyceride measurement.
The 2026 ACC/AHA guideline identifies elevated triglycerides (above 200 mg/dL) as one of the scenarios in which ApoB measurement becomes particularly useful to assess residual cardiovascular risk beyond standard lipid values.
What is non-HDL cholesterol?
Non-HDL cholesterol is your total cholesterol minus your HDL cholesterol. It captures all cholesterol carried by atherogenic lipoproteins — LDL, VLDL, IDL, and remnant particles — in a single number.
Non-HDL cholesterol is increasingly preferred over LDL alone as a treatment target, particularly in the 2026 ACC/AHA guideline, because it accounts for cholesterol carried by triglyceride-rich lipoproteins that the standard LDL calculation can underestimate. It does not require a fasting blood draw to be reliably measured.
Non-HDL cholesterol targets generally run 30 mg/dL higher than LDL targets:
- Below 130 mg/dL for borderline/intermediate risk
- Below 100 mg/dL for high risk
- Below 85 mg/dL for very high risk
What is Lp(a) and why does it matter?
Lp(a) — lipoprotein(a) — is a genetically determined lipoprotein particle that the standard lipid panel does not measure. It requires a separate blood test. It is one of the most clinically significant lipid markers most people have never heard of.
Elevated Lp(a) is now recognised as an independent and causal risk factor for atherosclerotic cardiovascular disease (ASCVD) and calcific aortic valve disease. Approximately 20% of the global population has elevated Lp(a) — an estimated 1.5 billion people worldwide. Unlike LDL, Lp(a) levels are 70–90% genetically determined and remain largely stable throughout life. Diet and lifestyle have minimal impact on Lp(a).
The clinical significance of Lp(a) has been substantially elevated in the most recent international guidelines:
- The 2026 ACC/AHA Dyslipidemia Guideline recommends — for the first time in a US guideline — that Lp(a) be measured at least once in all adults, with a Class I designation. The risk threshold is ≥125 nmol/L (approximately 50 mg/dL).
- The 2025 ESC/EAS guidelines similarly expanded Lp(a) screening recommendations to include all adults at least once in their lifetime, with particular focus on individuals with ASCVD family history.
A review published in Frontiers in Cardiovascular Medicine (2026) confirmed that Lp(a) is still rarely measured in clinical practice, even in patients with known cardiovascular risk factors — and that failure to measure it continues to systematically underestimate cardiovascular risk in a significant proportion of the population.
If you have never had your Lp(a) measured, and you have a family history of cardiovascular disease or elevated LDL that does not respond well to lifestyle intervention, asking your doctor for a Lp(a) test is clinically justified by the latest international guidelines.
What does it mean if my LDL is high but my HDL is also high?
High LDL with high HDL is a mixed lipid profile that requires contextual interpretation. It does not cancel out. A high LDL remains a risk factor regardless of HDL level — though elevated HDL does provide some degree of cardiovascular protection through enhanced reverse cholesterol transport.
The clinical priority is still to reduce LDL. The 2026 ACC/AHA guideline is explicit: HDL levels that are high do not outweigh the harmful effects of high LDL-C. The treatment target remains LDL-focused, with HDL providing context for overall risk assessment rather than offsetting LDL burden.
This scenario — high LDL, high HDL, seemingly "normal" total cholesterol — is precisely why total cholesterol alone is an inadequate metric. The individual components must be read together.
How does menopause affect cholesterol results?
Menopause produces a predictable and clinically documented shift in the lipid profile. As estrogen declines, hepatic LDL receptor activity decreases — meaning the liver becomes less efficient at clearing LDL from circulation. The result is a rise in LDL cholesterol that is hormonal in origin, not primarily dietary.
A comparative study published in Maturitas found that postmenopausal women had significantly higher total cholesterol (+10%), LDL cholesterol (+14%), and apolipoprotein B (+8.2%) compared to age-matched premenopausal women.
This hormonal mechanism explains why women's cardiovascular risk profile changes substantially after menopause, and why the Esteban data shows a convergence in LDL levels between men and women after age 55. It also explains why women in the 55–65 age range — Dafee's primary confirmed audience — warrant particularly close lipid monitoring and interpretation.
Written by the Dafee Science Team — published 15/06/2026. Dafeepédia content is developed from European regulatory sources (EFSA, EC Regulation 432/2012) and peer-reviewed scientific literature, and reviewed for accuracy before publication.
The Dafee Metabolic Intelligence app interprets standard lipid blood panels as metabolic patterns rather than isolated thresholds — available at app.dafee.fr.