The increasing consumer preference for organic food products reflects a significant shift in purchasing behavior, motivated by aspirations for a healthier, disease-free lifestyle and a commitment to ethical and environmentally sustainable food practices. This study employs Multiple Linear Regression Analysis, rooted in the Extended Theory of Planned Behaviour (ETPB), to investigate the determinants of purchase intention toward organic food products. A sample of 306 respondents from Lucknow, Uttar Pradesh, was surveyed to facilitate this analysis. The regression model evaluated the influence of four independent variables—Attitude, Subjective Norms, Perceived Behavioural Control, and Supply Chain Visibility—on Purchase Intention. The findings indicate that all four variables exert a positive and statistically significant impact on consumers’ intention to purchase organic food, underscoring their critical role in shaping purchasing decisions.