This paper examines the antecedents of sustainable food choices by consumers and investigates the differences between consumers based on their state of motivational imbalance. A sample of 609 respondents from Egypt took part in the study. Data were analyzed using a two-step approach of confirmatory factor analysis and structural models. The results indicate that attitudes, perceived behavioral control, personal norms, and activism are significant antecedents of consumers’ intention toward sustainable food. However, the data reveal a non-significant effect of subjective norms. Motivational imbalance has significant moderating effects, such that consumers who experience motivational imbalance showed consistently weaker intentions than consumers who experience motivational balance. Furthermore, there are significant differences between consumers under various scenarios of motivational imbalance. Specifically, the comparison of different motivational conflicts showed that attitude–subjective norm and attitude–activism conflicts cause the most substantial negative impact on consumer intentions. Theoretical and managerial implications are discussed.