Back to Blog
Lipids & Heart Health

How to Read Your Cholesterol Labs (What Your Doctor Didn't Tell You)

Learn what your cholesterol panel really means — LDL particle size, TG:HDL ratio, ApoB, and the advanced markers your standard lipid panel is missing. Functional medicine perspective from a practicing physician.

Dr. Matt Altman, MD12 min readFebruary 2026

By Dr. Matt Altman, MD — Emergency Medicine Physician & Functional Medicine Practitioner

Reading time: 12 minutes | Last updated: February 2026


You just got your cholesterol panel back. Your doctor says "everything looks great" or "we should talk about a statin." But here's the problem: the standard cholesterol panel your doctor ordered tells you about as much about your cardiovascular risk as looking at the outside of a house tells you about the plumbing.

Let me show you what those numbers actually mean — and what's missing from the standard panel entirely.

Disclaimer: This content is for educational purposes only and is not medical advice. Lab interpretation should be discussed with your healthcare provider. Lab Sage provides educational analysis to help you have more informed conversations with your doctor.


The Standard Cholesterol Panel: What You're Actually Getting

When your doctor orders a "lipid panel," you typically get four numbers:

  • Total Cholesterol
  • LDL-C (Low-Density Lipoprotein Cholesterol)
  • HDL-C (High-Density Lipoprotein Cholesterol)
  • Triglycerides

That's it. Four numbers to assess one of the most complex biological systems in your body. It's like evaluating your financial health by looking only at your bank balance — no income, no debt, no investments, no spending patterns.

Let's break down what each one really means.


Total Cholesterol: The Most Misleading Number in Medicine

Conventional "normal": Below 200 mg/dL What functional medicine considers: Context-dependent (150–250+ depending on the full picture)

Total cholesterol is the sum of LDL, HDL, and VLDL. Here's the problem: it's a composite number that tells you almost nothing by itself.

A total cholesterol of 240 could mean:

  • High LDL with low HDL (potentially concerning)
  • High HDL of 90 with moderate LDL (actually protective)
  • High Lp(a) driving the number (genetic risk that statins don't fix)

The Framingham Heart Study data, which established much of what we "know" about cholesterol, has been increasingly nuanced by research showing that total cholesterol alone is a poor predictor of cardiovascular events, particularly in women and people over 60.

What to know: If your doctor is fixated on total cholesterol alone, you're getting an incomplete picture.


LDL-C: It's Not Just About the Number

Conventional "normal": Below 100 mg/dL (below 70 for high-risk patients) Functional medicine perspective: Context-dependent — particle size and count matter more than concentration

LDL-C measures the amount of cholesterol carried by LDL particles. But here's what most doctors don't explain: not all LDL particles are created equal.

The Particle Size Problem

LDL comes in different sizes:

  • Large, buoyant LDL (Pattern A): Think beach balls floating through your bloodstream. These are relatively benign.
  • Small, dense LDL (Pattern B): Think BBs. These are the ones that penetrate arterial walls and drive atherosclerosis.

Two people can have the same LDL-C of 130 mg/dL with completely different risk profiles:

  • Person A: 800 large, buoyant particles → lower risk
  • Person B: 1,600 small, dense particles → significantly higher risk

A standard lipid panel doesn't tell you which one you are.

What to ask your doctor about:

  • LDL Particle Number (LDL-P): Available through NMR LipoProfile testing. This tells you how many LDL particles you have, which is more predictive than LDL-C alone.
  • Small Dense LDL: Some advanced panels break down LDL by size.
  • ApoB: Apolipoprotein B — each atherogenic lipoprotein particle has exactly one ApoB molecule, making it a direct measure of particle count. Many researchers consider ApoB the single best lipid marker for cardiovascular risk.

HDL-C: Higher Is Better… Usually

Conventional "normal": Above 40 mg/dL (men), above 50 mg/dL (women) Functional medicine optimal: 55–80 mg/dL

HDL is often called "good cholesterol" because HDL particles perform reverse cholesterol transport — they pick up cholesterol from arterial walls and bring it back to the liver for processing.

The HDL Nuance

While low HDL is consistently associated with higher cardiovascular risk, very high HDL (above 90-100) doesn't necessarily mean extra protection. Some research suggests that HDL function (how well HDL particles do their job) matters more than the raw number.

What raises HDL naturally:

  • Regular exercise (especially resistance training and HIIT)
  • Moderate alcohol consumption (though the cardiovascular "benefit" of alcohol is increasingly disputed)
  • Omega-3 fatty acids
  • Dietary saturated fat (yes — this is where it gets nuanced)
  • Weight loss

What lowers HDL (red flags):

  • Smoking
  • Sedentary lifestyle
  • Insulin resistance / metabolic syndrome
  • Trans fats
  • Very low-fat diets

Triglycerides: The Sugar Connection Your Doctor Might Miss

Conventional "normal": Below 150 mg/dL Functional medicine optimal: Below 80 mg/dL (ideally 50–70)

Here's what surprises most people: triglycerides are driven far more by carbohydrate and sugar intake than by dietary fat. Your triglyceride level is essentially a report card on your carbohydrate metabolism.

Why Triglycerides Matter More Than You Think

Elevated triglycerides are strongly associated with:

  • Insulin resistance (often the first biomarker to shift)
  • Metabolic syndrome
  • Increased small, dense LDL particles
  • Non-alcoholic fatty liver disease (NAFLD)
  • Increased cardiovascular risk independent of LDL

The Fasting Factor

Triglycerides fluctuate significantly based on your last meal. A non-fasting triglyceride level is nearly useless. Always get a fasting lipid panel (12-14 hours without food, water is fine).

What drives triglycerides up:

  • Excess sugar and refined carbohydrates
  • Alcohol (even moderate amounts)
  • Fructose (especially high-fructose corn syrup)
  • Insulin resistance
  • Sedentary lifestyle
  • Certain medications (beta-blockers, thiazide diuretics, oral estrogens)

What brings them down:

  • Reducing sugar and refined carbs
  • Omega-3 fatty acids (EPA/DHA — 2-4g/day can significantly reduce triglycerides)
  • Exercise
  • Weight loss
  • Time-restricted eating / intermittent fasting

The Ratios Your Doctor Probably Isn't Calculating

These calculated ratios are often more predictive of cardiovascular risk than any individual number:

TG:HDL Ratio

Optimal: Below 1.0 Acceptable: Below 2.0 Concerning: Above 3.0

This is arguably the most powerful predictor of cardiovascular risk you can calculate from a standard lipid panel. It's a proxy for insulin resistance and small, dense LDL particles. (We wrote an entire article on this — The TG:HDL Ratio: The Most Important Number You're Not Tracking.)

Total Cholesterol : HDL Ratio

Optimal: Below 3.5 Acceptable: Below 5.0 Concerning: Above 5.0

LDL : HDL Ratio

Optimal: Below 2.0 Concerning: Above 3.0


What's Missing From Your Standard Panel

The standard lipid panel was designed in the 1970s. Cardiovascular science has advanced enormously since then. Here's what a comprehensive cardiovascular risk assessment should include:

1. ApoB (Apolipoprotein B)

The single best lipid marker according to many cardiologists. Measures the actual number of atherogenic particles.

2. Lp(a) — Lipoprotein(a)

A genetically determined cardiovascular risk factor that affects roughly 20% of the population. Statins don't lower it. If you've never had it checked, you don't know your genetic cardiovascular risk. It only needs to be tested once (it doesn't change much over your lifetime).

3. LDL Particle Number (LDL-P)

Available through NMR LipoProfile. More predictive than LDL-C for cardiovascular events.

4. hs-CRP (High-Sensitivity C-Reactive Protein)

A marker of systemic inflammation. Cardiovascular disease is fundamentally an inflammatory disease, and hs-CRP adds significant predictive value beyond lipids alone.

5. Fasting Insulin

Not a "cholesterol" marker per se, but insulin resistance is the metabolic driver behind most lipid abnormalities. If your fasting insulin is elevated, fixing the insulin problem often fixes the lipid picture.

6. Homocysteine

An amino acid associated with cardiovascular risk when elevated. Easily treated with B vitamins (methylfolate, B12, B6) in most cases.


What This Means For You

If your doctor is making decisions based solely on LDL-C and total cholesterol, you're getting an incomplete picture. Before starting (or refusing) a statin, consider requesting:

  1. ApoB — the best single lipid marker
  2. Lp(a) — your genetic risk (test once, know forever)
  3. Fasting insulin — the metabolic driver
  4. hs-CRP — the inflammation picture
  5. NMR LipoProfile — particle size and count

And always calculate your TG:HDL ratio — it's free, it's powerful, and most doctors don't mention it.


How Lab Sage Can Help

Lab Sage analyzes your lipid panel using functional medicine optimal ranges — not just the conventional "normal" ranges. We flag markers that are technically "in range" but trending toward dysfunction, calculate the ratios that matter, and explain what your numbers mean in plain English.

Upload your labs at labsage.ai and see the difference between "normal" and "optimal."


Dr. Matt Altman is an emergency medicine physician and functional medicine practitioner. Lab Sage was built to bridge the gap between conventional lab interpretation and functional medicine analysis.

This article is for educational purposes only and does not constitute medical advice. Always discuss lab results and treatment decisions with your healthcare provider.

cholesterollipid panelLDLHDLtriglyceridesheart healthfunctional medicine

See Beyond "Normal"

Upload your lab results and get instant analysis using functional medicine optimal ranges.