METABOLIC
HEALTH

“The time to repair the roof is when the sun is shining”
 John F. Kennedy, 1962

WHY METABOLIC HEALTH MATTERS

Metabolic dysfunction rarely develops overnight.

Long before the diagnosis of type 2 diabetes, cardiovascular disease or fatty liver disease, subtle changes can often be detected in insulin regulation, lipid metabolism, inflammation and cellular energy production.1,2,3,5

These changes influence energy levels, body composition, cardiovascular risk, cognitive performance and long-term health outcomes.3,5,7,11,12

Understanding how these systems are functioning allows intervention to be directed toward the factors most relevant to the individual rather than relying on generic recommendations.

Addressing metabolic health is not designed to cure a chronic illness: it is designed to reduce the risk of developing a chronic disease in the future and to live as many healthy years as possible.1,2,3,12

METABOLIC DYSFUNCTION

Metabolic dysfunction is not a single condition but a collection of interconnected processes affecting how the body produces, stores and utilises energy.1,5,11

Areas commonly assessed include:

Insulin Resistance: when cells become less responsive to insulin, requiring greater insulin production to maintain normal blood glucose levels.1,2

Glycaemic Control: evaluation of fasting glucose, HbA1c and related markers that provide insight into short and long-term blood sugar regulation.1

Lipid Metabolism: assessment of cholesterol transport, triglycerides and lipoprotein particles that influence cardiovascular risk.3,4

Inflammation: persistent low-grade inflammation is associated with cardiovascular disease, insulin resistance and many age-related conditions.3,5,12

Body Composition & Adipose Function: not simply how much fat is present, but where it is stored and how it influences hormonal and metabolic signalling.7,9

WHAT DRIVES METABOLIC DYSFUNCTION

Multiple biological systems interact to influence metabolic health.1,2,5,7,8,9,10

These may include:

  • insulin resistance1,2
  • excess visceral adiposity7
  • physical inactivity2,12
  • poor sleep8
  • chronic stress9
  • dietary patterns2
  • genetic predisposition
  • gut health and microbiome composition10

 

The relative importance of each factor varies considerably between individuals.

UNDERLYING BIOLOGY

Many metabolic disorders begin years before symptoms become apparent.1,2,5

Changes in insulin sensitivity, fat distribution, liver function, vascular health and cellular energy metabolism may be detectable long before overt disease develops.1,5,7,11

Understanding these changes allows intervention to be directed toward risk factors that are already present rather than waiting for disease to become established.1,2,3

CLINICAL CONSEQUENCES

Persistent metabolic dysfunction is associated with an increased risk of numerous chronic conditions, including:1,3,5,6,11,12

Cardiovascular Disease: associated with adverse lipid profiles, elevated ApoB-containing lipoproteins, endothelial dysfunction and plaque formation.3,4

Type 2 Diabetes: characterised by progressive insulin resistance and impaired glucose regulation.1,2

Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD): previously referred to as non-alcoholic fatty liver disease (NAFLD), involving excessive fat accumulation within the liver.5

Chronic Kidney Disease: often linked to impaired glucose regulation, hypertension and vascular dysfunction.6

Cognitive Decline: emerging evidence suggests that metabolic dysfunction and circulatory issues influence brain health, cognition and long-term neurological outcomes.11,12

KEY BIOMARKERS

Assessment may include a range of laboratory and physiological markers selected according to the individual.1,3,4,5,6

Glycaemic Regulation1: HbA1c, fasting glucose, fasting insulin, HOMA-IR

Cardiovascular Risk3,4: ApoB, lipoprotein(a), triglycerides, HDL cholesterol

Body Composition7: visceral adiposity, waist circumference, lean mass

Liver Health5: ALT, AST, GGT

Kidney Health6: eGFR, UACR

Additional Markers Where Appropriate: hs-CRP, uric acid, homocysteine, vitamin D

HORMONAL HEALTH

Hormonal signalling influences metabolism throughout life.9

Changes in oestrogen, progesterone, testosterone and other endocrine pathways may affect body composition, insulin sensitivity, cardiovascular risk, bone health, physical performance and wellbeing.9

Where appropriate, assessment may include relevant hormonal markers as part of a broader understanding of metabolic health.

UNDERSTANDING THE INDIVIDUAL

Two individuals may present with similar symptoms while having very different underlying drivers of metabolic dysfunction.1,7,9

One person’s results may point towards insulin resistance and impaired glucose regulation. Another may demonstrate elevated cardiovascular risk despite apparently normal cholesterol levels.1,3,4

Others may show evidence of inflammation, fatty liver disease or reduced metabolic flexibility.5,11

Assessment helps identify which factors are most relevant, allowing recommendations and interventions to be selected with greater precision and purpose.1,2,3,5

Evidence and References

1.American Diabetes Association. Standards of Care in Diabetes 2026.

2.Cochrane Review. Diet, physical activity or both for prevention or delay of type 2 diabetes mellitus and its associated complications in people at increased risk. Updated 2023.

3.European Society of Cardiology (ESC) & European Atherosclerosis Society (EAS). Dyslipidaemias Guidelines and 2025 Focused Update.

4.National Lipid Association Expert Clinical Consensus. Role of Apolipoprotein B in Cardiovascular Risk Assessment and Management. 2024.

5.EASL–EASD–EASO Clinical Practice Guidelines on the management of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD). Journal of Hepatology. 2024.

6.KDIGO Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. 2024.

7.Emamat H, et al. Visceral-to-subcutaneous abdominal fat ratio and cardiovascular disease risk: a systematic review and meta-analysis. BMC Public Health. 2024.

8.Hong Y, et al. The Effect of Sleep Disruption on Cardiometabolic Health. Life. 2025.

9.Anagnostis P, et al. Menopause and Cardiometabolic Health. Best Practice & Research Clinical Endocrinology & Metabolism. 2024.

10.Pillai SS, et al. Gut Microbiome Composition and Metabolic Health: Current Evidence and Clinical Implications. Journal of Clinical Endocrinology & Metabolism. 2024.

11.Deery SE, et al. Metabolic Dysfunction, Insulin Resistance and Brain Health. npj Metabolic Health and Disease. 2024.

12.Livingston G, et al. The Lancet Commission on Dementia Prevention, Intervention and Care. The Lancet. 2024.