Today, it is known that consumers' cultural behaviors affect their eating habits. Foods in eating habits determine cultures and the boundaries of cultures. Differences in foods belonging to cultures reveal ethnocentrism. The aim of this study is to evaluate the role of gastro-ethnocentrism in purchasing intention by examining the relationship between the concepts of gastronomy, geographical indication and ethnocentrism. Gastro-ethnocentrism is when consumers prefer products from their own region and do not prefer products from other regions. Gastro-ethnocentrism is also closely related to geographically indicated products. The basis of these concepts is to support local products and local cuisine, take part in their promotion and ensure the sustainability of local products. However, it is seen that the perception of gastro-ethnocentrism in consumers affects their purchasing intentions, encourages them to consume local and national products, and also creates trust and value on the part of the consumer.