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Psychiatric and cardiometabolic disorders are associated through bidirectional and overlapping pathways involving chronic low-grade inflammation, HPA axis dysregulation, insulin resistance, and sleep/circadian disturbance.

This narrative review synthesizes evidence that psychiatric disorders (depression, anxiety, schizophrenia, SMI) and cardiometabolic disease share bidirectional biological pathways, including inflammation, HPA axis dysregulation, insulin resistance, oxidative stress, mitochondrial dysfunction, altered brain energy metabolism, gut microbiome disruption, and sleep/circadian disturbance. The review emphasizes that metabolic dysfunction may worsen psychiatric symptoms and vice versa, supporting integrated care and routine metabolic screening.

Last updated: Jul 28, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score32/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Metabolic Dysfunction in Psychiatric Disorders: A Narrative Review of Shared Pathways Between Mental Illness and Cardiometabolic Disease.

observational

Mohanty P, Uddin M, Sambhav K, S S, Lodha N, Anand A, Basu S · Cureus (2026)

Participants: N/A
Duration: N/A
Intervention: Not applicable (narrative review of existing literature)
Outcome: Shared biological and clinical pathways linking mental illness with metabolic dysfunction (e.g., inflammation markers, insulin resistance, HPA axis activity, sleep/circadian measures)
Effect Size: N/A
Population: Individuals with psychiatric disorders (depression, anxiety, schizophrenia, severe mental illness) and cardiometabolic disease (obesity, insulin resistance, diabetes, dyslipidemia, hypertension, cardiovascular disease)

Result:

PubMed: 42502529DOI: 10.7759/cureus.111469

Mechanism Graph

Chronic low-grade inflammation and HPA axis dysregulation are activated in both psychiatric and cardiometabolic disorders
↓
Insulin resistance, oxidative stress, and mitochondrial dysfunction impair brain energy metabolism
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Gut microbiome disruption and sleep/circadian disturbance further exacerbate metabolic and psychiatric symptoms
↓
Result: Bidirectional worsening of psychiatric and cardiometabolic outcomes

Limitations

  • ⚠Narrative review design limits systematic assessment of evidence quality and may introduce selection bias
  • ⚠Causality cannot be established due to lack of longitudinal or interventional data in the reviewed studies

Frequently Asked Questions

What are the main shared pathways between psychiatric disorders and cardiometabolic disease?▼

The review identifies chronic low-grade inflammation, HPA axis dysregulation, insulin resistance, oxidative stress, mitochondrial dysfunction, altered brain energy metabolism, gut microbiome disruption, and sleep/circadian disturbance as key shared pathways.

Does metabolic dysfunction precede psychiatric symptoms or vice versa?▼

The evidence suggests bidirectional relationships; metabolic changes may precede long-term treatment exposure in psychotic disorders, while psychiatric illness can increase cardiometabolic risk through stress biology, lifestyle factors, and medication effects.

What clinical recommendations does the review support?▼

The review supports routine metabolic screening, early risk stratification, individualized psychotropic prescribing, lifestyle intervention, and integrated care involving psychiatry, primary care, endocrinology, cardiology, nutrition, and behavioral health services.

Are antipsychotic medications the main cause of metabolic dysfunction in psychiatric patients?▼

Antipsychotic-associated weight gain and glucose-lipid abnormalities are important, but metabolic changes may also occur before long-term treatment exposure, particularly in psychotic disorders, indicating shared underlying mechanisms.

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References

  1. 1.Mohanty P, Uddin M, Sambhav K, S S, Lodha N, Anand A, Basu S. "Metabolic Dysfunction in Psychiatric Disorders: A Narrative Review of Shared Pathways Between Mental Illness and Cardiometabolic Disease.." Cureus, 2026. PMID: 42502529 DOI: 10.7759/cureus.111469
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.