I've read that in central Asian steppe cultures one of the most popular types of foodstuffs is a variety of drinks made by fermenting milk such as Kumis and Keffir. It's a pretty obvious choice to make booze if you have relatively limited access to fruits and grains but you herd large numbers of animals like sheep, goats and ponies. However over time many of these peoples converted from a variety of beliefs including Nestorian Christianity and Tibetan Buddhism to Islam. AFAIK historically not all Muslims were teetotalers even though many interpretations of the Koran proscribe alcohol. So do we know whether there was a push-back either way regarding drinks like Kumis among peoples like the Uzbeks or Kygryz after their conversion?
I'll try to give this question my best!
It's worth noting that kumis, as fermented mare's milk, is especially associated with nomadic peoples of Central Asia, so especially Kazakhs and Kyrgyz. It's also worth noting that while it is alcoholic, it's a very low percentage, varying between .7% and 2.5%. This puts it in "small beer" territory, and frankly one would have to drink a lot of kumis to start feeling a buzz.
Second, it's worth noting that Central Asia traditionally has adhered to the Hanafi school of Islamic jurisprudence, and this school's positions on alcohol focus on a ban of all grape or date derived alcoholic beverages, and a ban on drunkeness from anything else (I am by no means an Islamic juridical scholar, so one can please correct me). As such there is a level of wiggle room: drinking something like kumis is not ipso facto against Islamic law, at least as interpreted in the region.
There's finally the fact thar while nomadic Central Asians were exposed to and nominal Muslims from the 8th century or so onwards, this was a long conversion process that wasn't actually finalized until Russian conquest in the 19th century. Even then, nomadic peoples were governed by customary law (adat), and not sharia law, which was used to govern sedentary Central Asian populations. Which is to say - even when nomadic peoples followed Islam, it wasn't the sole or even ultimate source of their laws, and anyone who would have showed up and tried to argue for the sinfulness of fermented milk would probably have spent a rather uncomfortable night on the steppe.