Triglycerides: what your result means.

Triglycerides are the main form of fat circulating in your blood. A fasting level is a sensitive barometer of metabolic health, strongly influenced by diet, alcohol, weight and insulin resistance.

Why Triglycerides matters

Elevated triglycerides mark insulin resistance and increase the number of atherogenic remnant particles. They respond quickly to lifestyle change, often within weeks, making them one of the most actionable markers on a standard panel.

Associated risks when out of range: Insulin resistance. Fatty liver. Cardiometabolic disease.

What the clinical evidence shows

The evidence base behind how the HodieLabs Evidence-Based Clinical Library interprets Triglycerides, from randomised trials, prospective cohorts and genetic (Mendelian randomisation) studies. Full citations in the reference list below.

• Copenhagen population studies (Nordestgaard, Circulation Research 2016): elevated triglyceride-rich remnant lipoproteins were causally associated with ischaemic heart disease across ~100,000 Danes. Remnant cholesterol, not just LDL, drives residual risk.
• Genetic analysis (Do et al. Nature Genetics 2013): gene variants that raise plasma triglycerides raise coronary artery disease risk in proportion. Mendelian randomisation evidence that the triglyceride pathway is causal, not a marker.
• REDUCE-IT trial (Bhatt et al. NEJM 2019): in statin-treated patients with triglycerides 1.5–5.6 mmol/L, high-dose icosapent ethyl reduced major cardiovascular events by 25%, targeting the high-triglyceride phenotype changed outcomes.

Evidence-based reference ranges

The HodieLabs Evidence-Based Clinical Library interprets Triglycerides against published clinical authority standards, never arbitrary "optimal" ranges. Measured in mmol/L:

Band	Range (mmol/L)
Optimal	<1.7 mmol/L
Borderline	1.7–2.3 mmol/L
High	2.4–5.6 mmol/L
Very high	>5.6 mmol/L

Clinical interpretation

• Must be fasting (12+ hours) for accurate measurement; non-fasting inflates results.
• Elevated TG is often the earliest metabolic signal of insulin resistance.
• TG/HDL ratio is a practical insulin resistance proxy. Interpret together.
• Cardiovascular risk meaningfully rises once TG exceeds approximately 2.3 mmol/L, particularly in high-risk patients (ESC/EAS 2019).

What improves it: the evidence-based levers

• Reduce refined carbohydrates
• Reduce alcohol
• Weight reduction
• Exercise
• Omega-3 if elevated

Recommended testing frequency: Annual, as part of a comprehensive panel. Single markers are always interpreted in context.

How Triglycerides testing works at HodieLabs

Triglycerides is measured in every Health Blueprint at our Melbourne Preventative Health & Longevity Clinic, interpreted by a doctor against the guideline-cited ranges above and tracked over time through your HodieLabs membership.

References

1. Nordestgaard BG. Triglyceride-rich lipoproteins and atherosclerotic cardiovascular disease. Circ Res. 2016;118:547–563.
2. Do R, et al. Common variants associated with plasma triglycerides and risk for coronary artery disease. Nat Genet. 2013;45:1345–1352.
3. Bhatt DL, et al. Cardiovascular risk reduction with icosapent ethyl for hypertriglyceridemia (REDUCE-IT). N Engl J Med. 2019;380:11–22.
4. Mach F, et al. 2019 ESC/EAS Guidelines for the management of dyslipidaemias. Eur Heart J. 2020;41:111–188.

This page is general information from the HodieLabs Evidence-Based Clinical Library, not medical advice. Speak with your GP about what testing and care is appropriate for you.