One pint of Guinness a day can reduce the risk of blood clots that cause heart attacks, according to new research presented at the annual meeting of the American Heart Association in Orlando, Florida.
… Scientists investigating the health benefits of drinking beer found that stouts like Guinness worked much better than lager. They said dark beers were packed with anti-oxidant compounds called flavonoids which help reduce damage to the lining of the arteries. … For maximum benefit a person would need to drink just over one pint of Guinness a day.
My grandfather was ‘prescribed’ a bottle of Guinness per day by his GP, to lower cholesterol and blood pressure. Mind you, that was in ’70s Ireland ;)