Introduction: The role of diet and lifestyle in Irritable Bowel Syndrome (IBS) mainly involves alleviating symptoms and improving the quality of life for patients. Diet plays a significant role through the identification and avoidance of trigger foods, the introduction of an appropriate amount of fiber, and adherence to specific guidelines. Lifestyle, including regular physical activity, stress reduction techniques, and healthy sleep habits, also contributes to the reduction of bowel discomfort. Aim of the study: The aim of this study is to examine the relationship between diet and lifestyle, and the occurrence and course of Irritable Bowel Syndrome. Material and Methods of Research: A literature review focused on keywords related to the topic was performed using databases such as PubMed and Google Scholar, as well as textbooks and articles on websites. Results: Irritable Bowel Syndrome (IBS) is a chronic functional disorder of the gastrointestinal tract, primarily characterized by abdominal pain and changes in bowel habits. Dietary modifications, such as a lowFODMAP diet, and lifestyle factors, including physical activity levels, stress management, and meal regularity, significantly influence the course of the disease. There are gender differences in symptomatology and psychosocial impact as well as gender-specific responses to pharmaceutical treatments. Ongoing research is needed to better understand the mechanisms underlying IBS and to optimize therapeutic strategies. Conclusion: The effectiveness of IBS therapy requires a comprehensive approach that includes dietary modifications, increased daily physical activity, learning to manage emotions, and regular collaboration with a doctor. Understanding and implementing these elements are crucial for effectively alleviating symptoms and improving the functioning of patients with Irritable Bowel Syndrome.