Guides › The law
The short answer is yes in both the UK and the US. The useful answer is what food law expects of you, which country bans it outright, and the one free form UK sellers have to fill in.
Most of the fear here is borrowed from somewhere else. Platform terms of service are not the law, and dairy codes written about cattle are not the law about you. What does apply is ordinary food-business rules – a duller and far more manageable thing than the search results suggest.
Selling your milk Buying milk Safety and handling What's in the milk Oversupply and pumping All 31 guides