What  to do if you're a New Zealand farmer trying to sell a tangy green fruit  from the Yangtzee Valley in Northern China, roughly 10,000 miles away,  when the native 
yang tao won't do, and neither will "Chinese  gooseberry," as it was also called? You change its name, and add a dash  of nationalism. That, essentially, is how we came to call the 
Vitamin C-rich  kiwi (or kiwifruit) by something it is not: native to New Zealand  (where folks, and some birds, are known as Kiwis). The marketing scheme  was hatched in 1962, and by 1974, the name had stuck. And it turns out 
yang tao  means strawberry peach, which is a pretty apt description of a kiwi.  Anyway, the strategy has been pretty successful, as New Zealand remained  the largest exporter of kiwifruit to the U.S., 
as of 2007,  though fruit-producing vines have now been transplanted around the  world, and imports have increased markedly from Italy and Chile.
                                                        
Usually,  when the locals in some far-flung locale have a name for something  valuable, marketers come along and change it so that it will appeal to  their customers back home. Not so with dolphinfish, which we call mahi mahi,  just like the Pacific islanders do. Why? Easy: Even though dolphinfish  aren't at all related to dolphins (they're fish, not mammals), the idea  of eating a dolphin comes to mind when presented with dolphinfish as an  option. Not so with mah mahi, which has a benign, slightly exotic and utterly safe taste on the tongue… especially for those who are squeamish about eating certain sea creatures, but not others.
  Mahi mahi is classified by the Montery Bay Aquarium and the Environmental Defense Fund as a “Best Choice” safe sustainable fish only  when caught in U.S. waters by troll or pole. The longline fishery,  especially from non-U.S. fisheries, is a problem because of the high  levels of "bycatch" – fish, turtles and other creatures that are caught  and killed inadvertently.
                                                        
Rapeseed  is a flat-out wretched name for a cooking oil. If you're going to use  the oil-rich seeds and turn them into biofuel, fine; by the time it gets  to your tank, it's just fuel. But if you're cooking with the stuff, a  name with more appeal is in order. Which is why in the 1970s its growers  tried on some name changes. Low erucic acid rapeseed didn't exactly  work, but Canadian oil, for the place the seed was grown was promising.  Ultimately, in 1978, they found the sweet spot: Canadian oil, low acid –  Canola. It's fair to say that most chefs feel a whole lot more  comfortable buying and cooking with Canola oil.
via the daily green
                                                        
There were big problems for fishermen bringing Patagonian toothfish to market. The fish swims deep in icy sub-Antarctic waters, it's ugly  and the public at large wants nothing to do with something as  unappealing as "toothfish" on their plates. (So its cousin, the  Antarctic toothfish, wasn't going to help fishermen make a buck.) So the  L.A. marketing genius that changed its name to Chilean sea bass (yum!)  successfully opened a market for the flesh of the mild, white fish, back  in the late 1970s. Unfortunately, it also set off a fishing frenzy,  including an illegal fishing frenzy  that claimed so many of the slow-maturing, long-lived sea bass that  many conservation groups now consider them over-fished and at serious  risk of depletion. The fishery, even where it's legal, also kills many  albatross and other sea birds.
  One small fishery has Marine Stewardship Council certification, but unless you see that marking, pass on Chilean sea bass, as says the campaign slogan that removed the fish from many menus. Sustainable alternatives to Chilean sea bass include farmed striped bass and Alaskan sablefish. Or try these grilled sustainable fish recipes.
                                                        
Everyone  knows what prunes are for, and why your grandparents eat them,  begrudgingly or not. Which is why the California Prune Board asked, and  in 2000, received permission from the U.S. Department of Agriculture to  start calling them "dried plums," instead (after which it changed its  own name to the California Dried Plum Board, and started littering its  materials, ads and statements with the words 
dried plums).  It's accurate – like calling raisins "dried grapes," and it drops the  bathroom connotation. Whatever you call them (we still think of them as  prunes), they're loaded with vitamins, and really do make a great  healthy snack, or a delicious addition to ordinarily savory dishes. Or,  are we just saying that because the California 
Prune Dried Plum Board is successfully marketing 
plums as a superfood?
                                                        
Orange  roughy isn't obviously appetizing, but it sure beats slimehead, which  is how the fish is known where it is caught, off the coast of New  Zealand. It only caught on with U.S. consumers after it lost the slimy  connotations, and unfortunately it's 
really caught on, and bottom  trawling coupled with a long-lived (up to 150 years!) fish have  endangered this fish. The Environmental Defense Fund 
recommends against eating orange roughy, whatever you call it.