This article delves into the link between nutrition and mental health using a psychological perspective. The study examines various researches that investigate the connection linking diet and mental well-being with a focus on how nutrition impacts psychological aspects such as cognition, mood, and mental disorders. Furthermore this paper explores the various psychological factors that affect food choices as well as eating behaviors, including stress, mood swings, and eating disorders. The results of these research studies indicate that adopting a traditional or Mediterranean diet is beneficial for maintaining optimal mental health. Conversely, avoiding foods that are high in sugar content, saturated fat or processed ingredients is crucial for one’s overall mental well-being. These studies also emphasize the significant two way relationship between nutrition and mental health; psychological wellbeing can impact your food preferences while what you eat can affect your cognitive function regulation of emotions. In conclusion this review paper underscores the importance of understanding the psychological perspective behind nutrition’s interplay with one’s overall mental well-being. It emphasizes why it’s crucial to consider related psychological factors when developing interventions or implementing strategies aimed at promoting good health through optimized nutrition. Lastly it highlights the need for further studies in nutritional psychology to deepen our understanding of these complex connections.