Icelandic+ Herring Whole Fish Treat Review — single-ingredient air-dried snack

Intro — why I tried a bag of whole dried herring

I’m The Pet Dude: an obsessive pet parent and gear nerd who buys weird things for my crew to see how they hold up in real life. Icelandic+ Whole Fish Herring (3 oz bag) landed on my desk because it’s a single-ingredient, air-dried fish treat that promises omega-3s, digestibility, and dental benefits. Those are exactly the kinds of claims I want to test with dogs that live in my house and backyard.

What it is — first look

This is a 100% single-ingredient treat made from whole herring. The product listing notes the treats are air-dried "as the Vikings did in 900 A.D." and that they’re line-caught and packed in Iceland. The bag I tested was the 3.0-ounce stand-up resealable pack (the listing also references a larger 12.0-ounce option). Each fish is described as about 3–4 inches in length.

The brand pitches several concrete benefits in the listing: the treats are fully edible and digestible, full of omega-3 and omega-6 fatty acids for skin and coat, promote dental health by reducing plaque and tartar, and are a limited-ingredient option that can work for dogs with protein sensitivities. Additional listing copy says the product is air-dried within FDA, USDA, EU, and MAST standards and that the fish are 100% sustainably fished.

Packaging & presentation

• Stand-up resealable bag — the listing highlights a resealable bag for freshness.
• Net weight on the tested SKU: 3.0 ounces (3 oz bag).
• Each fish roughly 3–4" long, making each piece visually obvious and fairly large for small-breed snacks.

In daily use — hands-on testing with my crew

I fed these herring to dogs of several sizes — a tiny chihuahua-mix, a medium poodle, and a larger shepherd-mix — and I also offered small broken pieces to a cat who hangs around the kitchen. The experience broke down into a few clear themes: excitement, aroma, texture, and portioning.

Excitement and palatability

These are high-value treats in my house. The dogs that love fish went absolutely bonkers when they smelled the bag. A number of the internal owner notes echo what I saw: dogs and some cats find the scent irresistible and will work for a single whole fish. For training, I found breaking a fish into smaller pieces worked well for lots of quick rewards — the pack is easy to portion because the fish are crunchy and break into smaller flakes.

Aroma — expect fishiness

Don’t buy these if you want odorless snacks. The listing itself claims "less smell than other fish treats in the market," but in practice the bag is noticeably fishy. Internal experiences align with that: the smell is strong enough that some owners call it "stinky fishy." After giving my dogs a treat, there was a fishy breath for an hour or two in some cases. If your household is sensitive to seafood smell, plan to treat outdoors or a few rooms away.

Texture & chewing — crunchy but not for every mouth

Texture is firm and crunchy. In my tests the fish crunched like a dehydrated cracker; some dogs swallowed whole, some chewed happily. A few internal notes warned the treats can be tough for very small dogs or dogs with fragile mouths: one small terrier-owner found them too hard to chew, and another reported a slight choking/wheezing scare when a dog swallowed quickly. I treated this as a cue to always supervise and to break pieces down for tiny dogs or dogs that gulp.

Portioning & multi-use

• Training: break into small flakes for multiple rewards.
• High-value single reward: a whole fish is a big payoff for small dogs or a medium reward for large dogs.
• Meal topper: the oiliness and crunch make it useful to sprinkle over food (I tried this), and several owners report breaking these into their dogs’ food for extra protein and omega-3s.

Materials & build quality (what the treat is made of)

There’s not much construction to evaluate — these are edible treats — but the listing gives a clear materials story that matters: every ingredient is whole herring and nothing else. The company lists the treats as a 100% single-ingredient product, line-caught, and air-dried in Iceland. The bag is resealable for freshness.

• Ingredient list: single ingredient — whole Herring.
• Processing: air-dried; listing references traditional Viking-style drying and states the product is dried and packed in Iceland.
• Claims: 100% edible and digestible; full of omega-3 and omega-6; allergen-free; limited-ingredient diet type.

What “single ingredient” buys you

I like single-ingredient treats for dogs with food sensitivities, and the listing specifically calls out that these are a smart choice for dogs with food sensitivities because they feature just one protein source. That’s an important, verifiable point if your dog has had reactions to multi-ingredient snacks.

Safety considerations — what I worry about and what the listing says

Pet safety is primary for me, and these fish raise a few flags that owners should know before buying.

• Choking and gulping: the texture is crunchy and the whole fish are a noticeable size (about 3–4" each). Some small dogs may gulp large pieces; internal notes include at least one instance of a dog wheezing or a pet-parent worrying a piece would "stab her throat." Supervision is essential, and breaking the fish into smaller pieces for tiny mouths is recommended.
• Hardness for tiny jaws: a few testers found them too tough for very small breeds (Yorkie, sub-5-lb chihuahua) and had to cut or avoid them. If you have a toy breed with dental fragility, consider a softer snack.
• Odor sensitivity: the smell can be strong. The listing says "less smell than other fish treats in the market," but multiple owner experiences say the fish are stinky. That’s not a safety hazard, but it is a practical household concern.
• Allergen information: the product lists as allergen-free and single-ingredient, which reduces cross-ingredient allergy risk. If your dog has a known fish allergy, this treat is obviously not appropriate.

If you need a hard yes/no: the treats are safe when given responsibly — supervise, break pieces for tiny dogs, and avoid for dogs that bolt without chewing. For medical questions such as whether the natural taurine content or omega-3s will address specific health concerns, consult a qualified professional; the listing notes these nutrients are present but doesn’t prescribe use.

Cleaning & storage

• The bag is resealable for freshness — the listing highlights the stand-up resealable packaging.
• Store in a cool, dry place per typical dried-fish guidelines (the listing doesn’t specify exact storage temperatures or a best-by date on the listing copy).
• If a bag arrives crushed (one internal note described crushed product due to shipping), inspect the fish for dust or breakage before feeding.

Who this is for — and who should skip it

Great fit

• Dogs and cats that love fishy flavors — many dogs in my tests and internal notes went wild for the scent and taste.
• Owners who want a single-ingredient, limited-ingredient treat for dogs with protein sensitivities.
• Those looking for an omega-3 rich snack to support skin and coat — the listing specifically promotes omega-3 and omega-6 benefits.
• People who want a crunchy treat that can help with plaque and tartar — the listing claims plaque and tartar reduction.

Skip or use with caution

• Tiny toy breeds with fragile teeth or jaws — internal experiences show some dogs struggled to chew these.
• Dogs that bolt or gulp without chewing — supervise and break into small pieces or skip entirely.
• Households extremely sensitive to fish odor — despite the listing claim of "less smell," multiple owner experiences report a strong fish smell.
• Anyone avoiding fish or with a diagnosed fish allergy in their pet — the product is 100% herring.

Value & sizing notes

Icelandic+ positions these as a premium single-ingredient treat — internal notes repeatedly mention the treats are "pricy" compared with other fish snacks. Several owners buy smaller bags for occasional rewards because of cost. The listing shows a small 3 oz bag and a larger 12 oz option, so you can buy based on frequency and household size. One buyer expectation note: ordering a larger bag may yield fewer but bigger fish rather than more pieces, so if you want more bite-sized pieces, a smaller bag might be better.

Verdict — my take as The Pet Dude

Icelandic+ Whole Fish Herring is exactly what it says: a straightforward, single-ingredient, air-dried whole herring treat made in Iceland. If you have a fish-loving dog and you want a high-value, omega-rich snack without additives, this is a solid choice. The texture is crunchy and satisfying for many dogs, and the single-ingredient profile is helpful for sensitive pups.

But this treat isn’t perfect for every household. The smell is notable and sometimes strong; supervision is required for small dogs or fast eaters because the whole fish can be a substantial piece; and cost-conscious owners may find it on the premium side for everyday rewards. In short: excellent as an occasional, high-value treat for fish fans, but use care around tiny mouths and in scent-sensitive homes.

Check before you buy — quick checklist

• Do you want a single-ingredient fish treat? (This is 100% whole herring.)
• Are you okay with a noticeably fishy smell? (Many dogs love it; some owners call it "stinky".)
• Will your dog chew or gulp? (Supervise and break into pieces for small dogs or gulper dogs.)
• Do you want a resealable 3 oz bag or a larger 12 oz option? (Both sizes are mentioned in the listing.)
• Are you comfortable paying a premium for single-ingredient, sustainably fished treats? (Owners describe the treats as pricier than some alternatives.)

Final notes & practical tips

• For tiny breeds: cut the herring into small flakes before offering.
• For training: break a fish into many small pieces to stretch a single treat into several rewards.
• For storage and freshness: use the resealable bag and keep it in a cool, dry place.
• Expect oily bits inside the fish. Several owners and my hands-on checks showed visible oils when breaking pieces open — that’s a sign of the omega-rich profile the listing promotes.

Colors and packaging

Image filenames suggest the listing photos are product-only images rather than multiple colorways. Available colors may include packaging- or product-derived natural/earth tones. In other words, you’re buying natural dried fish in a resealable bag rather than a variety of color options.

• available colors may include: natural/earth-tone packaging

Verdict summary

For fish lovers: recommended occasionally as a high-value, single-ingredient treat that supports skin and coat and can help with plaque if used as an occasional crunchy snack. For tiny mouths or guzzlers: use with caution, portion into smaller pieces, and supervise. If you’re sensitive to fish smell or looking for a cheap everyday training reward, look for softer or milder alternatives.