A lipid panel returns five numbers. Most patients only know two of them. Understanding the rest changes how the conversation about treatment goes.
Your annual physical likely includes a lipid panel. The results show up as a list of numbers, often with arrows indicating “high” or “low.” Here’s what each number is, and why some of them matter more than others.
The five numbers
- Total cholesterol — the sum of all the cholesterol-carrying particles in your blood. Less informative than its components.
- LDL cholesterol — “low-density lipoprotein.” Often called “bad” cholesterol because it’s the main contributor to plaque buildup in arteries.
- HDL cholesterol — “high-density lipoprotein.” Often called “good” cholesterol because it helps remove cholesterol from the bloodstream.
- Triglycerides — a different type of fat in the blood. Elevated triglycerides are associated with insulin resistance and metabolic syndrome.
- Non-HDL cholesterol — total cholesterol minus HDL. A useful single number that captures all the “atherogenic” particles.
The numbers that matter most
For most patients, the single most important number on the panel is LDL cholesterol. The relationship between LDL and cardiovascular disease is one of the most consistent findings in modern cardiology.
The general targets:
- Healthy adults: LDL under 3.4 mmol/L (about 130 mg/dL)
- Moderate cardiovascular risk: LDL under 2.6 mmol/L (about 100 mg/dL)
- High risk (diabetes, prior heart event, established disease): LDL under 1.8 mmol/L (about 70 mg/dL)
- Very high risk: LDL under 1.4 mmol/L (about 55 mg/dL)
Your “right” target depends on your overall cardiovascular risk profile, not just your LDL in isolation.
Where HDL fits
Higher HDL is generally better — but raising HDL with medication doesn’t reliably reduce cardiovascular events the way lowering LDL does. So HDL is a marker more than a treatment target. We track it but rarely treat it directly.
That said, the things that raise HDL are the things that improve cardiovascular health overall: regular exercise, weight loss, moderation of alcohol, and quitting smoking.
Why triglycerides matter
Triglycerides above 1.7 mmol/L (150 mg/dL) suggest something is off in how your body processes carbohydrates and fats. Very high triglycerides (above 5.6 / 500 mg/dL) carry direct risk of pancreatitis.
The single biggest lever for triglycerides is sugar and refined carbohydrate intake. Patients who reduce these often see triglycerides drop substantially within a few months.
The statin conversation
Statins are the most-studied class of medications in modern medicine. They reliably lower LDL by 30–55% depending on the dose and specific drug. The evidence that this prevents heart attacks and strokes is overwhelming for high-risk patients and substantial even for moderate-risk patients.
The decision to start a statin is not just about your LDL number. It’s about your 10-year cardiovascular risk — calculated from your age, sex, smoking status, blood pressure, diabetes status, and lipid panel together. Online calculators and your clinician can walk you through this.
Statin side effects
The most common concern is muscle aches. Roughly 5–10% of patients report some muscle soreness. The actual rate of statin-attributable muscle problems in randomized blinded trials is much lower — but for individual patients, the discomfort is real, and there are several alternative statins to try if one isn’t tolerated.
What to do with your last lipid panel
If your last panel was within range and you have low cardiovascular risk, repeat every 3–5 years. If your LDL is elevated, have the conversation about whether lifestyle alone is reasonable to try first, or whether starting a statin makes sense given your overall risk.
The goal isn’t to obsess over a single number. The goal is to understand your real cardiovascular risk and make informed decisions about how to manage it.
