A2 beta-casein milk - this allegedly is the original type of cows' milk that was present on our planet thousands of years ago. In recent times with intense breeding programmes, cows' milk changed and an additional form of protein beta-casein called A1 began to appear in cows' milk. It is claimed by some that it is this additional beta-casein that causes problems in the digestive system of humans.
I'm not sure whether this may be the answer to people who currently are having problems with dairy products. (Perhaps, those that do have issues and are lactose intolerant could kindly add their opinion in the comments below.)
Apparently, all of the ancient types of herds of related animals to cows such as buffalo and zebu and a few traditional cattle herds only have the A2 beta-casein protein in their milk.
It is alleged by some that it is the fact that there is A1 beta-casein protein in ordinary dairy milk that has helped to raise the incidence of diabetes in rats. And to give further 'food for thought' human milk is also A2.
The reason for my blog post here is that I noticed whilst out shopping today that the supermarket had some A2 milk on the shelf .. I had never heard of it before and so looked it up when I got back home. There is quite extensive information on the Net but for those who want a quick read of where it originated here is the A2 website: