I have a relative who drinks nothing.....nothing at all.....no tea, coffee, water, juice, alcohol......
The only glass I've seen at her lips is an empty one for a token toast...and she's been this way since her teens.
She is ninety two.....would easily pass for an attractive seventy......lovely figure, gorgeous hair and mentally as sharp as a tack with a great sense of humour.
I'd follow her example....if it didn't mean ditching the Guinness.... ;-)