Written sources and interdisciplinary analysis provide evidence for the existence of peculiarities in the diet of ancient Thracians, including abstinence for a limited period of time (fasting?) or a complete ban on the consumption of certain foods. In some cases, documented food taboos draw a line between the general population and small isolated groups who have the privilege of eating differently. The information about the food that the Thracians refuse / restrict or are forbidden to accept could reveal more about their cultural identity and self-determination. It is even possible for certain social groups and classes to declare themselves through the food they do not consume. The existing special dietary regimes of the Thracians and their neighbors – Greeks and Scythians – could even be considered as an ethno-distinctive marker for the different nations of the Balkans.