When Arthur Guinness began brewing the black stuff, it became known as a tonic, something that helped build strength.
In the 1920s, as Northern Ireland was coming into being, that the ‘Guinness is good for you’ slogan synonymous with the brand was created.
There’s no doubt Northern Ireland is in need of a tonic right now and that the relationship between the UK and the Republic of Ireland could do with a pick-me-up.
With Brexit and the controversial Legacy Act, relations between Dublin and London have been chilly for some time.
With the change of government in Westminster, however, there are signs that brighter days may be ahead.
Prime Minister Sir Keir Starmer and Taoiseach Simon Harris were pictured at Chequers earlier this week, enjoying a pint of Guinness in the garden.
Both say they are now embarking on a reset of Anglo-Irish relations.
While the images show the leaders happy and relaxed, some tough talking will have been done.
The fallout over Brexit, borders and legacy issues are among the most pressing matters, but there are plenty of other things to consider.
Both leaders have shown a desire to change things, to improve the relationship and return to the days when the governments cooperated for their mutual benefit and for the benefit of Northern Ireland.
They say good fences make good neighbours, but the fighting over those fences we have seen in recent years has become an unwelcome distraction.
There is little to gain from neighbouring countries continually poking each other in the eye. It’s much easier when they at least try to get along.
Relationships can be hard work, but that doesn’t mean they shouldn’t be worked at.
With a new Prime Minister and a new Taoiseach in place, we may be about to enter a positive phase in relations between our islands.
To its credit, the Republic, through its Shared Island initiative, has earmarked millions of pounds in funding for important projects on this side of the border, including upgrading the roads network.
With the UK now on the fringes of Europe, having a friend at the table in the EU can only be beneficial.
Northern Ireland needs as many allies as it can get, whether they be across the Irish Sea or across the border, and it’s much easier to make friends when you’re open to cooperation.
That’s something we can all raise a glass to.