If I offered you a superfood that would make you live longer, would you be interested?, BBC reports.
Naturally it reduces the chances of debilitating heart attacks and strokes as well as life-long diseases such as type-2 diabetes.
And it helps keep your weight, blood pressure and cholesterol levels down.
I should mention it's cheap and widely available in the supermarket.
Fibre - it's not the sexiest thing in the world but a major study has been investigating how much fibre we really need to be eating and found there are huge health benefits.
"The evidence is now overwhelming and this is a game-changer that people have to start doing something about it," one of the researchers, Prof John Cummings, tells BBC News.
It's well known for stopping constipation - but its health benefits are much broader than that.