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LOS ANGELES (AP) - Iceberg is your father's lettuce: A big, round ball wrapped in cellophane and ready to be torn apart to top a burger or smothered under thick salad dressing.
It remains the nation's dominant lettuce, but consumers, chefs and nutritionists are increasingly giving it the cold shoulder as more varied salad greens — such as romaine, arugula and mache — sprout on supermarket shelves.
Faster shipping, better packing and a growing taste for nutrients have allowed other greens to eat into its market.
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