Compared to nomadic communities, Silk Road cities were urban food deserts
(PHYSorg.com Archaeology & Fossils)

Like passionate foodies who know the best places to eat in every town, Silk Road nomads may have been the gastronomic elites of the Medieval Ages, enjoying diets much more diverse than their sedentary urban counterparts, suggests a new collaborative study from Washington University in St. Louis, the Institute of Archaeology in Samarkand, Uzbekistan and Kiel University in Germany.