ApoB/ApoA1 Ratio Blood Test Australia: Low, High & Optimal ApoB/ApoA1 Ratio Levels

ApoB/ApoA1 ratio: normal range and what your result means

Apolipoprotein B/Apolipoprotein A1 Ratio is a derived lipid marker calculated from apolipoprotein testing (advanced lipid profile), comparing ApoB (atherogenic particle number) with ApoA1 (HDL-related transport capacity). Apolipoprotein B/Apolipoprotein A1 Ratio levels help indicate the balance between cholesterol-carrying and cholesterol-clearing pathways. A higher ratio is associated with dyslipidaemia, insulin resistance, metabolic syndrome, hypertriglyceridaemia, and increased atherosclerosis and cardiovascular disease risk, while a lower ratio is generally more favourable. This matters because lipid particle balance links to cardiometabolic health, exercise tolerance, and recovery. The Apolipoprotein B/Apolipoprotein A1 Ratio blood test is best interpreted alongside ApoB, ApoA1, LDL-C, HDL-C, non-HDL-C, triglycerides, and Lp(a).

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Vively's health team can help you test ApoB/ApoA1 Ratio. You start with the Baseline Health Check, then add this test.

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GP referralIncluded, from a GP in our network

MedicareThis marker is in the private part of the Full Body Health Check, so it has no Medicare rebate. Your Baseline markers are still Medicare-rebated.

Blood drawAt any of 3,700+ collection centres

ResultsIn the app, usually within a few days

What is the ApoB/ApoA1 ratio?

The ApoB/ApoA1 ratio compares the concentration of two key apolipoproteins in your blood: ApoB, which carries cholesterol to tissues, and ApoA1, which removes excess cholesterol from the bloodstream. It’s a strong indicator of how efficiently your body manages lipid transport and balance.

Why does it matter for long-term health and wellbeing?

This ratio gives a clearer picture of your lipid balance than standard cholesterol measures. A favourable ratio supports efficient cholesterol transport, energy metabolism, and long-term cardiovascular resilience.

What’s an optimal level of the ApoB/ApoA1 ratio?

Optimal range: <0.7
Typical Australian lab reference range: 0.6 to 0.9

What influences ApoB/ApoA1 ratio levels?

Your ratio can be affected by diet quality, physical activity, body composition, alcohol intake, smoking, stress, and genetic factors that influence cholesterol production and clearance.

What does it mean if the ApoB/ApoA1 ratio is outside the optimal range?

A higher ratio may indicate an imbalance between cholesterol-carrying and cholesterol-clearing lipoproteins. This can signal an opportunity to reassess your nutrition, exercise habits, or overall metabolic health.

How can I support healthy ApoB/ApoA1 ratio levels?

Adopt a balanced diet rich in whole foods, fibre, and healthy fats, stay active, maintain a healthy weight, and prioritise restorative sleep and stress management. Tracking your ratio regularly helps you see the impact of these habits over time.

This information is provided for general health and wellness purposes only and does not replace medical advice.

References

Kaneva, A. M., et al. (2015). The Apolipoprotein B/Apolipoprotein A-I Ratio as a Superior Marker. PMC.
Tamang, H. K., et al. (2014). Apo B / Apo A-I Ratio is Statistically a Better Predictor. PMC.
Willeit, P., et al. (2006). Associations between apolipoprotein B, apolipoprotein AI, and the apoB/AI ratio with incident cardiovascular events. Journal of Internal Medicine.
He, H., et al. (2021). The Apolipoprotein B / A1 Ratio is Associated with Metabolic Syndrome Components and Insulin Resistance. Frontiers in Endocrinology.

Often tested with

Start hereBaseline Health CheckApoB/ApoA1 ratio is added to a Baseline Health Check, which covers 70+ markers in one blood test and is part of the $99 a month membership. The add-on is priced individually.See what’s included Add-on, priced individuallyApolipoprotein A1 (ApoA1)The main protein in HDL, which helps remove excess cholesterol Add-on, priced individuallyApolipoprotein B (ApoB)The main protein on the plaque-building particles in your blood In your BaselineALT/triglyceride ratioLiver enzyme ALT with triglycerides, two strong predictors of fatty liver

How to get it: Available as one of our specialty add-on tests. See how a blood test without a referral works.

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