Where is this published? I only could find <a href="https://microbiomejournal.biomedcentral.com/articles/10.1186/s40168-021-01027-8" rel="nofollow">https://microbiomejournal.biomedcentral.com/articles/10.1186...</a> but it does not discuss anything about test in mices, like the press article. It's about testing some molecules produced by kefir in bacteria.