/tags/grapefruit grapefruit en-US Copyright Mon, 14 Nov 2016 14:27:00 GMT /npr-news/2016-11-14/grapefruit-and-salt-the-science-behind-this-unlikely-power-couple Ad campaigns of the first and second world wars sold Americans on this surprising pairing. Despite a rocky history of breakups, these two flavors have chemistry that cannot be denied. Mon, 14 Nov 2016 14:27:00 GMT /npr-news/2016-11-14/grapefruit-and-salt-the-science-behind-this-unlikely-power-couple Nadia Berenstein