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Background Studies have shown mixed results regarding the association between irritable bowel syndrome (IBS) and metabolic syndrome (MS); This study aimed to assess the susceptibility of IBS patients to MS and its individual components. Methods PubMed, Scopus, Embase, and Web of Science were searched on 1/1/2023. Eligible studies were screened, and data on study characteristics, IBS diagnostic criteria, and metabolic syndrome components were extracted. Data were analysed in RevMan 5.4, with results reported as relative risk (RR) or mean difference (MD) and 95% confidence intervals. Statistical significance was set at p < 0.05. Results IBS was associated with an increased risk of MS (RR = 2.05, 95% CI = 1.50–2.79, p < 0.00001), with a higher risk among IBS‐D patients (RR = 3.09, 95% CI = 2.41–3.97, p < 0.00001). IBS patients showed increased HOMA‐IR (MD = 0.21, 95% CI = 0.15–0.26, p < 0.00001), higher obesity risk (RR = 1.46, 95% CI = 1.10–1.93, p = 0.009), elevated BMI (MD = 1.51, 95% CI = 0.98–2.03, p‐value < 0.00001), waist circumference (MD = 5.01, 95% CI = 1.29–8.72, p = 0.008), and an association with systolic hypertension (MD = −0.50, 95% CI = −0.60 to −0.40, p‐value < 0.00001). IBS was also linked to higher LDL (MD = 5.98, 95% CI = 0.91–11.05, p = 0.02), total cholesterol (MD = 12.21, 95% CI = 6.23–18.18, p < 0.0001), and triglycerides (MD = 11.93, 95% CI = 11.55–12.31, p < 0.00001). Conclusions This analysis indicates a potential association between IBS and metabolic syndrome, including its components such as obesity, hypertension, and lipid profile abnormalities. However, significant heterogeneity among studies limits the generalisability of these findings. Clinicians should remain aware of the possible link and consider individualised preventive and management strategies.

Studies have shown an increased incidence of metabolic syndrome (MS) among irritable bowel syndrome (IBS) patients; we aimed to assess the eligibility of IBS as a risk factor for MS. PubMed, Scopus, Embase, and Web of Science were searched on the 1st of January 2023. Only observational controlled studies were included. Analysis was conducted by RevMan software version 5.4. IBS was associated with an increased incidence of MS (RR = 2.05, 95% CI = 1.50 to 2.79, p-value >0.00001). A significant association was seen between IBS, abdominal obesity (RR = 1.28, p-value = 0.0003), and increased waist circumference (MD = 5.01, 95% CI = 1.29 to 8.72, p-value = 0.008). IBS patients didn't have an increased risk of diabetes (RR= 1.29, 95% CI = 0.85 to 1.98, p-value = 0.23), however, they had increased HOMA- IR (MD = 0.21, 95% CI = 0.15 to 0.26, p-value < 0.00001). Analysis of blood pressure revealed an association between systolic not diastolic hypertension and IBS (MD = -0.50, 95% CI = -0.60 to -0.40, p-value >0.00001). Higher levels of LDL cholesterol (MD = 5.98, 95% CI = 0.91 to 11.05, p-value = 0.02), total cholesterol (MD = 12.21, 95% CI = 6.23 to 18.18, p-value >0.0001), and triglyceride (MD = 11.93, 95% CI = 11.55 to 12.31, p-value >0.00001) were detected among IBS patients. IBS patients are at increased risk for MS and its components. Accordingly, patients should be screened for MS, and preventive programs should be implemented.