This is a really good one and explains why the information was confused and also that the new feed doesn’t pass from Cow to milk and has been extensively used in other countries already xx https://www.fwi.co.uk/business/markets-and-trends/dairy-markets/arla-faces-backlash-over-trials-with-methane-reducing-bovaer
Apparently Sainsbury’s aren’t using them for dairy products so could shop there
This will spark a debate am sure, but there’s a lot of information out there, a lot of misinformation and scaremongering amongst it. If you read something more factual like this news article which is not for or against it it might provide some peace of mind. Most dairy in the uk is made by arla, it’s hard to avoid but they are trialing a new feed for their cows, there is no need to be worried at all. If you want to avoid it, going forward buy organic milk xx https://www.bbc.co.uk/news/articles/c8rjdgre3vpo.amp