Ryan’s bar in North London faces a Guinness supply shortage, reflecting a broader challenge for pubs across Britain. Bar owner Ged O’Sullivan notes an increase in demand, particularly among younger drinkers influenced by social media and celebrities. Diageo attributes the shortage to heightened consumer demand. Meanwhile, other pubs like The Hope are promoting alternative Irish beers, such as Murphy’s stout, to offset the lack of Guinness. Despite supply issues in Britain, Diageo assures that the island of Ireland is unaffected.