Physiological Role
Triglycerides are lipid molecules composed of a glycerol backbone linked to three fatty acids. They represent the body’s main energy reserve. After a meal, dietary fatty acids are assembled into triglycerides in enterocytes (cells lining the intestinal wall) and then transported in the blood by chylomicrons, large lipoproteins.
The liver also synthesises triglycerides from excess glucose through a process called de novo lipogenesis. These hepatic triglycerides are exported into the circulation by VLDL (very low-density lipoproteins). In peripheral tissues, an enzyme called lipoprotein lipase hydrolyses triglycerides to release fatty acids that serve as an energy source.
Fasting triglyceride levels primarily reflect hepatic production and plasma clearance capacity. They are particularly sensitive to the carbohydrate and lipid composition of the diet, as well as to insulin sensitivity.
Reference Ranges
These reference ranges are derived from scientific literature and may differ from your laboratory's reference values.
Biological Significance
Triglyceride levels in the optimal zone indicate a balanced lipid metabolism. Fatty acids are properly mobilised, stored and used by the body. This is the favourable scenario for long-term cardiovascular health.
Elevated values signal an excess of triglyceride-rich particles in the circulation. This accumulation is associated with increased cardiovascular risk, particularly when it persists over time. High triglycerides frequently accompany insulin resistance, excess body weight or a diet rich in refined sugars.
Very high values warrant particular attention. They may reflect a significant metabolic imbalance or a genetic component influencing lipid metabolism.
Longitudinal monitoring provides more insight than a single measurement. Tracking triglyceride levels across successive panels reveals the concrete impact of dietary adjustments and lifestyle changes.
Influencing Factors
Diet. Refined carbohydrates, added sugars and excess fructose directly stimulate hepatic triglyceride production. A diet rich in fibre, unsaturated fatty acids and lean protein supports the maintenance of optimal levels.
Alcohol. Alcohol consumption, even moderate, raises triglycerides in a dose-dependent manner. Ethanol is metabolised by the liver into acetyl-CoA, a direct substrate for fatty acid synthesis.
Physical activity. Regular exercise, particularly endurance activity, improves plasma triglyceride clearance by activating muscle lipoprotein lipase. The effect is measurable within 24 to 48 hours after a session.
Body composition. Visceral adiposity is a major factor in chronic triglyceride elevation. A gradual reduction in abdominal fat tissue is frequently accompanied by an improved lipid profile.
Sleep. Insufficient or poor-quality sleep disrupts the regulation of insulin and cortisol, two hormones that influence hepatic triglyceride synthesis.
Omega-3 (EPA+DHA). Long-chain omega-3 fatty acids, included in the Singular formula, contribute to the maintenance of normal blood triglyceride levels. This claim is authorised for a daily combined intake of 2 g of EPA and DHA.
Berberine. This plant alkaloid is the subject of clinical trials evaluating its influence on lipid and carbohydrate metabolism.
In the Singular Formula
Triglycerides are among the lipid markers that the Singular formulation engine uses to adjust the nutritional response. Their role in personalisation is direct and documented.
When triglyceride levels fall in the elevated or very elevated zone, the formulation engine activates a lipid support protocol. Omega-3 (EPA+DHA) dosing is raised to its reinforced level. Omega-3 fatty acids contribute to the maintenance of normal blood triglyceride levels. Berberine dosing is also increased to support lipid and carbohydrate metabolism.
Triglycerides are interpreted alongside other lipid profile markers measured by Singular. Apolipoprotein B provides information on the total number of atherogenic particles in circulation. HDL cholesterol completes the reading by assessing reverse cholesterol transport. This cross-referenced approach enables finer personalisation than reading a single marker in isolation.
The link between triglycerides and carbohydrate metabolism is also taken into account. Fasting glucose, fasting insulin and HOMA-IR, all measured in the Singular panel, allow assessment of insulin sensitivity, a parameter closely correlated with triglyceride levels.
Linked Bioactives
Scientific Studies
| Authors | Year | Type | Journal | |
|---|---|---|---|---|
| Sarwar N et al. | 2007 | Meta-analysis | Circulation | View on PubMed |
Triglycerides and the risk of coronary heart disease: 10,158 incident cases among 262,525 participants in 29 Western prospective studies Meta-analysis of 262,525 participants and 10,158 coronary cases. Elevated triglycerides are associated with increased coronary risk, even after adjustment for HDL cholesterol. | ||||
| Marston NA et al. | 2019 | Meta-analysis | Circulation | View on PubMed |
Association Between Triglyceride Lowering and Reduction of Cardiovascular Risk Across Multiple Lipid-Lowering Therapeutic Classes: A Systematic Review and Meta-Regression Analysis of Randomized Controlled Trials Systematic review and meta-regression of 91 randomised trials. Triglyceride lowering is associated with reduced cardiovascular risk, independently of LDL cholesterol reduction. | ||||
| Klempfner R et al. | 2016 | Cohort Study | Circulation: Cardiovascular Quality and Outcomes | View on PubMed |
Elevated Triglyceride Level Is Independently Associated With Increased All-Cause Mortality in Patients With Established Coronary Heart Disease: Twenty-Two-Year Follow-Up of the Bezafibrate Infarction Prevention Study and Registry 22-year follow-up of 15,141 participants. Elevated triglycerides are associated with a 68% increase in all-cause mortality in individuals with coronary heart disease. | ||||
| Zhou H et al. | 2022 | Cohort Study | Journal of the American Heart Association | View on PubMed |
Associations of Hypertriglyceridemia Onset Age With Cardiovascular Disease and All-Cause Mortality in Adults: A Cohort Study Hypertriglyceridemia onset before age 45 is associated with a 4.69-fold increase in all-cause mortality compared with matched controls. | ||||
| Wang T et al. | 2023 | Meta-analysis | Journal of the American Heart Association | View on PubMed |
Association Between Omega-3 Fatty Acid Intake and Dyslipidemia: A Continuous Dose-Response Meta-Analysis of Randomized Controlled Trials Dose-response meta-analysis showing that omega-3 intake above 2 g per day reduces triglycerides in a near-linear fashion, particularly in overweight or dyslipidaemic individuals. | ||||
| Blais JE et al. | 2023 | Meta-analysis | Drugs | View on PubMed |
Overall and Sex-Specific Effect of Berberine for the Treatment of Dyslipidemia in Adults: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Trials Meta-analysis of randomised placebo-controlled trials evaluating berberine’s effect on dyslipidaemia. Berberine significantly reduces triglycerides, total cholesterol and LDL cholesterol. | ||||
| Skulas-Ray AC et al. | 2019 | Systematic Review | Circulation | View on PubMed |
Omega-3 Fatty Acids for the Management of Hypertriglyceridemia: A Science Advisory From the American Heart Association Science advisory from the American Heart Association confirming that omega-3 fatty acids at 4 g per day are an effective option for reducing triglycerides, as monotherapy or adjunct to lipid-lowering agents. | ||||