Kochkor region, Naryn oblast Kyrgyzstan
Kymyz is a fermented horse milk that has been in Kyrgyz diet for ages. Nowadays Kymyz is used as a detox drink. Even in the areas of the world where kumis is popular today, mare's milk remains a very limited commodity. Industrial-scale production, therefore, generally uses cow's milk, which is richer in fat and protein, but lower in lactose than the milk from a horse. Before fermentation, the cow's milk is fortified in one of several ways. Sucrose may be added to allow a comparable fermentation. Another technique adds modified whey to better approximate the composition of mare's milk.