Never Eat a Piece of Fish If You See This on the Packaging, FDA Says
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  • Post published:06/11/2021
  • Post last modified:06/11/2021

Whether you follow a pescatarian diet or just enjoy a piece of grilled salmon or sushi roll from time to time, fish is a great way to add filling protein and heart-healthy omega-3s to your meals. And while most fish has benefits for your wellbeing, not all seafood is created equal when it comes to your health.

In fact, there’s one sure sign you shouldn’t eat a particular piece of fish—and what’s on the packaging could tip you off to the problem. Read on to discover how to spot the issue to keep yourself safe.

RELATED: If You’re Over 65, Never Eat This One Kind of Fish, Says CDC.

If you see ice crystals on a fish’s packaging, don’t buy it.

older woman looking at package of fish in supermarketolder woman looking at package of fish in supermarket
Shutterstock/BearFotos

When you’re buying fish, there’s one clear indicator that you should toss a particular package back rather than eating it: ice crystals.

While you might imagine that seeing ice on a package of frozen fish is a good sign, indicating that it’s been kept cold, the U.S. Food & Drug Administration (FDA) says otherwise. The authority explains that ice crystals may be an indicator that the fish has spent a prolonged period in storage, meaning it’s not exactly fresh, or that it has thawed and been subsequently refrozen, which could indicate changes in its temperature that could potentially support the growth of dangerous bacteria.

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Additional packaging changes may tip you off to a problem.

three fish filets in styrofoam packagingthree fish filets in styrofoam packaging
Shutterstock/VICUSCHKA

Ice crystals on a fish’s packaging aren’t the only telltale signs that something might be amiss.

The FDA recommends steering clear any frozen seafood with torn or open packaging, as well as any packaging with crushed edges. Additionally, you can tell whether or not a frozen fish is a good choice by feeling its flesh—if it’s pliable and doesn’t feel solid, you’re better off avoiding it.

Fresh fish should be displayed on ice.

fish on icefish on ice
Shutterstock/PickOne

Though you may want to avoid any packaged frozen fish that has ice crystals on it, that doesn’t mean ice and fish are always incompatible.

If you’re purchasing fresh fish, the FDA recommends that you only buy products that have been kept on a bed of ice—and, ideally, stored in a case or other enclosed or covered environment—or ones that have been kept refrigerated.

You can’t judge the quality of previously frozen fish on appearance alone.

whole fish in fish marketwhole fish in fish market
Shutterstock/Urbanscape

While there are plenty of foods you can eyeball to determine their freshness, fish doesn’t number among them.

The FDA notes that any fish product that that’s labeled “previously frozen” may have undergone changes that may make its appearance noticeably different from that of a fresh fish. Specifically, a previously frozen fish may have changes in its gill color, texture, bloodlines, and the appearance of its eyes.

RELATED: Never Eat Microwaved Food Before Doing This, FDA Warns.

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