If you live in Los Angeles, chances are your favorite sushi spot isn't actually serving you the fish you ordered.

The folks over at UCLA and Loyola Marymount conducted a study together from 2012 to 2015, and found that a whopping 47 percent of the sushi fish they ordered, was mislabeled.

While randomly visiting LA sushi restaurants over the years, they ran DNA tests on everything they ordered like they were on Maury.

In that time, they put in 43 orders of halibut sushi, and according to their tests, not once did they ever receive real halibut, with 90 percent actually being flounder. Similarly, with their 32 red snapper orders, every single piece of sushi was some other type of fish.

If you're a fan of bluefin, you'll be happy to know that every one of the studied orders turned out to be bluefin, so there's no funny business happening with it.

Last, but definitely not least, out of 47 orders of salmon, only six of them proved to be a different fish. At least salmon orders are mostly honest.

It's not just at restaurants either, their studies found a similarly high mislabeling at supermarkets, as well.

It really sucks that Angelenos have been duped for all these years, but at least you can be more conscious of your halibut and red snappers. Next time, perhaps ask some questions if you feel sketch about your sushi order.