Under a glass seafood can appear innocent. With a chalkboard menu a tidy row of fillets and a few encouraging terms like wild fresh or local most guests walk on believing that the label has done its job. However the data presents a less reassuring picture. Nearly four out of ten seafood items were mislabeled in some form across 35 U.S. investigations that included 4179 samples from 32 states. It’s not a rounding error. The question of how much of what we believe we are purchasing is really what we are purchasing is raised by this trend which is consistent enough.
Unfortunately the response varies depending on the type of shellfish. The total mislabeling percentage was lower for the top 10 seafoods consumed in the US 31.0% with species substitution at 13.9%. That seems better but only until you realize how much of the issue is concealed. The larger problem with those well known products wasn’t always a bait and switch in the traditional sense.
| Important Information | Details |
|---|---|
| Topic | U.S. seafood label accuracy and mislabeling |
| Study scope | 35 studies, 4,179 samples, 32 states, 2010–2023 |
| Overall mislabeling rate | 39.1% |
| Species substitution | 26.2% |
| Unacceptable market names | 17.1% |
| Conflicting market names | 1.1% |
| Top 10 consumed seafoods | 31.0% overall mislabeling; 13.9% substitution |
| Most frequently investigated species | 53.0% overall mislabeling; 42.5% substitution |
| Reference website | FDA Seafood List |
It was frequently an incorrect or careless market name a label that seemed reasonable and possibly even enticing but did not adhere to FDA regulations. In comparison the most commonly studied species had a 53.0% mislabeling rate and a 42.5% substitution rate making them significantly more susceptible to complete substitution. To put it another way the fish that receives the most attention is frequently the one that is most likely to be completely replaced.
The story becomes intriguing and a little frustrating in the details. Pangasius salmon cod and crab all stood out in different ways but catfish did better than the glamour species possibly due to its lower value and stricter regulations. With an overall mislabeling incidence of 67.5% sushi and sashimi were particularly vulnerable. That image reminds me of a flashing caution light in a busy restaurant kitchen.
At 55.4% restaurants were the worst shopping environment overall followed by seafood markets and other non traditional vendors. At 26.2% grocery stores performed better but better still requires a lot more work. Not all counters are crooked; that is not the idea. The label is less reliable than most consumers believe since the system allows for misinterpretation opportunism and simple carelessness.
Additionally there is a more subtle issue here that may seem technical at first but after giving it some thought it becomes clear. Certain seafood may not always be sold under the incorrect species name; instead it may be sold under an inappropriate or even contradictory market name. Product names like white tuna unagi or swai basa may seem reasonable at the time but they don’t necessarily correspond with the FDA Seafood List.
Even though that type of label might not seem as dramatic as fraud it can nonetheless deceive customers particularly when packaging and menus emphasize familiarity prestige or foreignness. The strangest part about watching this happen is how commonplace everything is. It cannot be explained by a single scandal. Rather the buyer is pushed further away from the truth by a series of minor shortcuts market trends and opaque supply chains.
There is also a public health component which merits greater consideration than it typically receives. Paying too much for one fish when you get another is hardly the only example of mislabeling. It may expose people to poisons allergies or species that they should stay away from for environmental medical or religious reasons. It can also invalidate sustainability claims that customers increasingly rely on.
A customer may assume they are buying something sustainably sourced only to realize later that the substitution originated from an entirely different fishery with different pressures and different effects. The label is more than just ornamental which is the silent harm in all of this. It serves as a link between the market and reality and when it falters the system as a whole loses credibility.
The data does not justify cynicism on its own. They lead to a more pragmatic conclusion: improved naming discipline and more control are needed for certain seafood categories. The authors of the study recommend more focused enforcement improved data collecting that distinguishes between product forms retail locations and actual label language and clearer information regarding permissible market names. That seems correct. It would be lazy to have a general distrust of all seafood. Blind trust however is worse. A menu or product label shouldn’t seem like a conjecture masquerading as fact nowadays it happens far too frequently.
i) https://www.news.chapman.edu/2025/03/21/does-your-seafood-label-look-fishy-you-may-be-on-to-something/
ii) https://www.fisheries.noaa.gov/national/sustainable-seafood/seafood-fraud
iii) https://www.pmc.ncbi.nlm.nih.gov/articles/PMC10400555/
iv) https://www.sustainablefisheries-uw.org/seafood-101/la