Background: Self-efficacy is a key modifiable factor in preventive care, influencing health promotion and disease prevention behaviors.
Objective: This systematic review and meta-analysis evaluated yoga's effects on self-efficacy as a low-cost preventive intervention.
Methods: This study was conducted following the PRISMA guidelines through 26 February 2026. Relevant articles were gathered from databases such as MagIran, SID, PubMed, Embase, Web of Science, Scopus, and Google Scholar using specific keywords. Interventional original studies with full text that evaluated the effect of yoga on self‑efficacy and reported sufficient data were included. Studies lacking a control group, full text, or sufficient data, as well as non‑interventional or duplicate studies, were excluded. The methodological quality of the included studies was assessed using the JBI checklist for interventional studies. Heterogeneity was assessed via I², and publication bias via Egger's regression.
Results: From 1,273 records, 14 studies (n = 843) were included. Yoga significantly enhanced self-efficacy versus control (SMD = 1.175; 95% CI: 0.750–1.600; P < 0.001), with an increasing yearly effect (P < 0.001).
Conclusion: Yoga appears to improve self-efficacy. From a preventive care perspective, integrating yoga into routine health promotion programs offers a practical, non‑pharmacological approach to strengthening self‑efficacy.