The Diet-Mental Health Relationship (DMHR) is an umbrella term used within the field of nutritional psychology. It represents a multifaceted concept serving as a conceptual framework encompassing the intricate and multidirectional links between dietary habits and psychological well-being. It involves the influence of food choices on psychological, cognitive, behavioral, interoceptive, sensory-perceptual, and psychosocial processes that impact our thoughts, feelings, behaviors, and experiences.