Objectives <p>Positive eating attitudes and mindful eating behavior are important for maintaining healthy daily nutrition and are linked to a healthier eating lifestyle. Although previous research has explored how eating attitudes and mindful eating behavior relate to physical health and psychological well-being, these factors have often been studied independently. This study aimed to examine the association between mindful eating behavior and daily physical health and psychological well-being, and to explore whether eating attitudes moderate these relationships.</p> Method <p>A multilevel quantitative diary design was employed, and data were analyzed using hierarchical linear modeling. A total of 50 students from Malaysia’s East Coast universities participated in the study and completed six sets of diary questionnaires over a 2-week period (Sunday, Tuesday, and Thursday) (50 respondents × 2&#xa0;weeks × 3&#xa0;days = 300 diary entries).</p> Results <p>The findings revealed positive associations between daily mindful eating behaviors and both daily physical health and psychological well-being. Furthermore, the strength of these relationships was moderated by eating attitudes. A notable contextual factor related to the study was that most participants were Muslims, and their dietary teachings emphasize awareness and moderation, which potentially align with observed mindful eating behavior.</p> Conclusions <p>This study underscores the potential value of encouraging mindful eating behavior and positive eating attitudes to promote better daily health-related experiences. Future research should examine how cultural and religious dietary practices influence mindful eating across diverse populations.</p>