Due to deceptive labeling practices, diners can’t be sure the fish they eat at restaurants are what they’re identified as on menus. Mistakes and trickery at various levels of the supply chain lead to cheap fish often being mislabeled as more expensive varieties. Now restaurants around the world are trying to rebuild confidence by using DNA tests to certify their fish labeling.
In an investigation, the Boston Globe gathered fish from 134 restaurants, supermarkets and fish-mongers. They hired an independent lab to test the fish for authenticity and discovered 87 of the 183 fish tested were “mislabeled,” a whopping 48%.