By Dana Sullivan Kilroy (LA Times)September 15, 2012
Every couple of years a food or beverage is crowned with what nutrition experts call a “health halo.” Some of the foods — wild salmon, blueberries, flax seeds — deserve it. But others gain status for no apparent reason. Acai berry, anyone? It’s not that the trendy food is unhealthful. It’s just that if you’re already eating a well-balanced diet it’s unnecessary. And possibly expensive. The latest entrant in this category: coconut water.