Triglycerides
| Clinical | Optimal | |
|---|---|---|
| Male | 0.0 - 2.3 mmol/L | Below 1.7 mmol/L (ideal below 1.0 mmol/L) |
| Female | 0.0 - 2.3 mmol/L | Below 1.7 mmol/L (ideal below 1.0 mmol/L) |
What is Triglycerides?
Triglycerides are the most abundant type of fat circulating in your blood. When you eat, your body converts any calories it does not need to use immediately into triglycerides, which are then stored in your fat cells. Between meals, hormones release triglycerides from storage to provide energy.
Triglycerides are transported through your bloodstream by very low-density lipoprotein (VLDL) particles. While your body needs triglycerides for energy, consistently high levels can damage your blood vessels and contribute to the hardening and narrowing of your arteries, increasing your risk of heart disease and stroke.
This marker is especially sensitive to recent food intake, which is why fasting blood tests give the most accurate reading. Triglyceride levels respond rapidly to dietary changes, making them one of the most actionable markers in your blood test results. They are a key component of your Omniwo lipid profile.
Why Triglycerides Matters for Your Health
Elevated triglycerides are a significant and independent risk factor for cardiovascular disease. High levels are frequently found alongside other metabolic disturbances, including low HDL cholesterol, insulin resistance, and elevated blood sugar, a cluster often referred to as metabolic syndrome.
From a longevity perspective, triglyceride levels serve as an excellent window into your metabolic health. They reflect how efficiently your body processes dietary fats and carbohydrates. Persistently elevated triglycerides accelerate arterial ageing and increase the risk of both cardiovascular events and conditions such as non-alcoholic fatty liver disease.
Triglycerides are particularly responsive to lifestyle interventions, which means they offer a powerful feedback loop for anyone making dietary changes. Improvements can often be seen within just a few weeks of reducing refined carbohydrates and increasing physical activity, making this marker especially motivating for health optimisation.
Triglycerides& Your Wearable Data
Triglycerides are among the most exercise-responsive blood biomarkers. Your wearable's activity data directly relates to triglyceride clearance: a single bout of vigorous exercise can lower triglycerides by 15-25% for up to 72 hours. Tracking consistent daily movement — particularly achieving 150+ active minutes per week in heart rate zones 2-4 — supports lower fasting triglyceride levels.
Sleep disruption has a pronounced effect on triglycerides. Wearable data showing fragmented sleep, insufficient total sleep time (under 7 hours), or irregular sleep-wake patterns is associated with elevated triglyceride levels. The relationship is bidirectional: improving sleep consistency, as tracked by your wearable, may help lower triglycerides over weeks to months.
Post-meal triglyceride spikes are influenced by physical activity timing. Wearable step data showing light activity after meals — even a 15-minute walk — can significantly reduce postprandial triglyceride elevation. Monitoring your daily step distribution and timing walks after main meals is a practical strategy supported by wearable tracking.
What High Triglycerides May Suggest
High triglycerides, known as hypertriglyceridaemia, are commonly caused by a diet high in refined carbohydrates, sugars, and alcohol. Excess calorie intake from any source is readily converted into triglycerides, so overeating in general can raise levels. Obesity, physical inactivity, and insulin resistance are also major contributors.
Elevated triglycerides contribute to atherosclerosis and are associated with an increased risk of heart disease, stroke, and pancreatitis (particularly when levels exceed 10 mmol/L). They are also a hallmark of metabolic syndrome and often accompany pre-diabetes and type 2 diabetes.
Underlying conditions such as hypothyroidism, kidney disease, and liver disease can also raise triglycerides. Certain medications and genetic conditions may contribute as well. If your results suggest high triglycerides, dietary modification, particularly reducing sugar, refined carbohydrates, and alcohol, is typically the most effective first intervention.
What Low Triglycerides May Suggest
Low triglyceride levels are generally considered healthy and are not typically a cause for concern. Very low levels (below 0.4 mmol/L) are uncommon and may be seen in individuals with very low body fat, those on extremely low-fat diets, or in cases of malnutrition or malabsorption.
Certain conditions such as hyperthyroidism can also drive triglycerides down. In rare genetic conditions affecting fat metabolism, very low triglycerides may be present from birth.
For the vast majority of people, a low triglyceride level indicates good metabolic health and efficient fat processing. If low levels are accompanied by unexplained weight loss or other symptoms, further investigation by your GP may be worthwhile.
How to Optimise Your Triglycerides
Food
Dramatically reduce refined sugars and simple carbohydrates, including white bread, pastries, sugary drinks, and sweets, as these are rapidly converted to triglycerides, Increase omega-3 fatty acid intake from oily fish (salmon, mackerel, sardines) at least two to three times per week, Choose whole grains over refined grains to slow glucose absorption and reduce triglyceride production, Limit alcohol intake, as alcohol is particularly efficient at raising triglyceride levels, even in moderate amounts
Lifestyle
Engage in regular aerobic exercise, as even a single session can lower triglycerides for 24-48 hours, with sustained activity producing lasting reductions, Lose excess body weight, as reducing body fat directly reduces the amount of stored triglycerides released into the bloodstream, Limit or eliminate alcohol consumption, which is one of the most rapid ways to lower elevated triglycerides, Avoid large, infrequent meals in favour of smaller, regular meals to prevent triglyceride spikes
Supplements
High-dose omega-3 fish oil (2-4g EPA/DHA daily) is one of the most evidence-based supplements for lowering triglycerides, Berberine (500mg two to three times daily) has shown promise in reducing triglycerides alongside improvements in blood sugar regulation, Fibre supplements such as psyllium husk (5-10g daily) can help moderate post-meal triglyceride levels
When to Speak to Your GP
See your GP if your triglyceride results suggest levels above 2.3 mmol/L, particularly if combined with other metabolic risk factors such as elevated blood sugar, high blood pressure, or abdominal obesity. Seek urgent medical advice if triglycerides exceed 5.0 mmol/L, as very high levels increase the risk of acute pancreatitis. Also consult your GP if elevated triglycerides persist despite three months of consistent dietary and lifestyle changes.
References
- NHS. High cholesterol — Overview (includes triglycerides). Updated 2024. nhs.uk
- NICE. Hypertriglyceridaemia — Clinical Knowledge Summaries. nice.org.uk
- JAMA. Miller M, et al. Triglycerides and cardiovascular disease: a scientific statement from the AHA. Circulation. 2011;123(20):2292-2333. pubmed.ncbi.nlm.nih.gov
- BMJ. Nordestgaard BG, Varbo A. Triglycerides and cardiovascular disease. Lancet. 2014;384(9943):626-635. pubmed.ncbi.nlm.nih.gov
- ESC. Mach F, et al. 2019 ESC/EAS Guidelines for the management of dyslipidaemias. Eur Heart J. 2020;41(1):111-188. pubmed.ncbi.nlm.nih.gov
Medical Disclaimer— This content is for general educational and informational purposes only. It does not constitute medical advice, diagnosis, or treatment. Omniwo Ltd is a wellness information service and is not a medical device, clinical laboratory, or regulated healthcare provider under MHRA guidelines. The “optimal ranges” presented on this page are based on published clinical guidelines (WHO, NICE, NHS) and peer-reviewed research; they represent functional wellness targets and may differ from standard laboratory reference ranges. Individual results should always be interpreted by a qualified healthcare professional (such as your GP) who understands your full medical history. Do not start, stop, or change any medication or supplement based solely on this information. If you are experiencing symptoms, seek medical attention promptly.