The study, which has been published in the Royal Society of Chemistry journal – Food and Function, was conducted by French scientists who tested a blend of juices on pig arteries in a laboratory.
The blend, which includes grape, cranberry and blackcurrant was found to relax the artery walls, adding to evidence that fruit and vegetables can help to reduce the risk of heart disease.
Heart health dietician Tracey Parker from the British Heart Foundation commented: “This research adds more weight to evidence that eating fruit and vegetables is good for us in terms of reducing our risk for heart disease.
“However, we still don’t fully understand why, or whether certain fruits and vegetables are better than others. Even this study acknowledges that scientists can’t yet explain any link.
“What we do know is that we should all eat a wide range of fruit and veg as part of a balanced diet, and fruit juice is a tasty and handy way of doing this.
However, Parker warns that fruit juice contains less fibre and more sugar than the original fruit, so it only counts as one of our recommended five-a-day.
View the original BBC News article.