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.
People who are lactose intolerant are missing the enzyme lactase, which breaks down lactose, a sugar found in milk and dairy products. As a result, lactose-intolerant patients are unable to digest these foods, and may experience symptoms such as nausea, cramps, gas, bloating and diarrhea. 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.