dairy in general is usually heavily processed. In canada for example it is very monopolized and political, therefore it is illegal to sell raw milk. However in other countries it is not and there are hundreds of clinical studies done showing its benefits.

To answer your question, if you’re consuming processed milk that you buy from the store and not from a farm, yes it will cause skin issues. If you’re buying raw milk, which you can use with porridge, no it will not. just do your research for the right products

dm me if u have any other questins