This thesis explores the Mediterranean diet of the Croatian Adriatic as intangible cultural heritage and its crucial role in preserving cultural identity. The Mediterranean diet represents more than just a way of eating; it embodies culture, tradition, and lifestyle. The thesis examines food as cultural heritage, highlighting its symbolic importance in shaping community identities. A historical overview of the Mediterranean diet outlines key features, such as the use of local and seasonal ingredients, which form the basis of a sustainable lifestyle. The study delves into traditional dishes from regions like Istria, Kvarner, and Dalmatia, focusing on those recognized as cultural heritage in Croatia, including Paški cheese, Soparnik, and Starogrojski paprenjok. Furthermore, the thesis investigates the role of gastronomic events, such as the "Taste the Mediterranean" festival, in safeguarding the Mediterranean diet in spite of the challenges posed by globalization. Through comparative analysis, the Mediterranean diet of the Croatian Adriatic is contrasted with dietary practices in other Mediterranean countries like Greece, Spain, Italy, Cyprus, and Portugal, underscoring both similarities and differences in culinary traditions, social significance, and preservation strategies. The conclusion features a survey analysis conducted among Croatian residents and Adriatic visitors, revealing a strong awareness of the Mediterranean diet’s importance and the necessity for ongoing efforts in its promotion and preservation.