Dan Buettener, an explorer of the world's rare 'Blue Zones', has shone a light on one food that's game-changing for heart ...
Explorer Dan Buettner has visited the world's five 'Blue Zones' - areas where the population lives to over 100 - and one food ...
A diet high in potassium and fibre can help to maintain low blood pressure, and one vegetable in particular is a powerhouse ...