The study, carried out by a UPV / EHU research group, analyzes the diet of Muslim individuals found at a site in Tauste (Zaragoza) and determines the differences in diet according to sex and age. This work is part of the doctoral thesis being carried out by the geologist, Iranzu Laura Guede on diet and mobility in medieval times in the north of the Iberian Peninsula. This research applies techniques typical of geology to respond to the unknowns that have arisen in other disciplines such as archeology or anthropology at the archaeological site of Tauste (Zaragoza). Excavations carried out in this municipality unearthed the skeletons of 44 Muslim individuals who lived between the 8th and 10th centuries. From that discovery, a research group from the Department of Mineralogy and Petrology of the Geology section of the UPV / EHU has been in charge to analyze dental samples of these

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human remains to establish the diet of this medieval Islamic community. “WE ARE WHAT WE EAT” from UPV / EHU on Vimeo. The researcher Guede has used the laser ablation technique to Iceland Email List perform specific analyzes on the teeth. One of the characteristics of this technique is that the sample does not need a great deal of preparation and that, in addition, it is not very aggressive with the fossil remains. Therefore, it allows the conservation of these remains, which are limited in archeology, preserving them for future studies. The chemical results have revealed the existence of notable differences in the diet of adult men compared to that of women and young people. It has been found that adult men had a higher intake of protein of animal origin than women and young people, who had a diet richer in legumes and vegetables. The analyzes carried out by this group

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of researchers have to be anchored in the studies of historians, anthropologists and archaeologists themselves. “The numerical data alone do not indicate anything, but they are essential to support the hypotheses and archaeological and historical discoveries”, emphasizes Dr. Zuluaga, one of the directors of Guede’s doctoral thesis. Therefore, although “we cannot know exactly the origin of animal protein through these analyzes, based on written texts and anthropological knowledge of medieval Muslim society, it can be assumed that it would come, above all, from goats and sheep.” In this sense, this type of study is proof that “we are what we eat” as pointed out by Samuel Epstein (1951), a geologist famous for developing stable isotope analysis methods. “What we eat becomes part of our bodies and provides us with very valuable information that remains engraved on us”,

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