Rome 's first aqueduct supplied a water fountain sited at the city's cattle market. By the third century AD, the city had eleven aqueducts, sustaining a population of over a million in a water-extravagant economy; most of the water supplied the city's many public baths.
Casein in Foods. Most dairy products contain casein, but not all. Since casein is a protein, it is found in dairy products that have a higher protein content, such as milk, yogurt, kefir, cheese and ice cream.Dairy products that contain barely any protein, such as butter and cream, only have traces of casein.ince casein is a protein, it is found in dairy products that have a higher protein content, such as milk, yogurt, kefir, cheese and ice cream. Dairy products that contain barely any protein, such as butter and cream, only have traces of casein.
1 Many non-dairy products contain casein (a milk derivative), listed on the ingredient labels. 2  Some specialty products made with milk substitutes (i.e., soy-, nut-or rice-based dairy products) are manufactured on equipment shared with milk.3  Some meats may contain casein as a binder. 4  Check all labels carefully. Many non-dairy products contain casein (a milk derivative), listed on the ingredient labels. 2  Some specialty products made with milk substitutes (i.e., soy-, nut-or rice-based dairy products) are manufactured on equipment shared with milk. 3  Some meats may contain casein as a binder. 4  Check all labels carefully.