Nordic Naturals Omega-3 Pet Review: Fish Oil for Dogs

Key facts
Type	Fish oil (liquid omega-3)
Model / size	237 mL (8 fl oz), unflavoured
Key spec	About 736 mg EPA + 506 mg DHA per 5 mL
Ongoing costs	Consumable, repeat purchase
Trust & certification	NASC-audited supplier; Friend of the Sea; third-party tested
Best for	Skin and coat support, medium-large dogs

Overview

Nordic Naturals is best known for human fish oil, and Omega-3 Pet brings the same approach to dogs. It is an unflavoured liquid made from sardine and anchovy oil in natural triglyceride form, sold in a 237 mL (8 fl oz) bottle aimed at medium and large dogs. Owners usually add it to food for skin and coat support.

The trust signals are strong. Nordic Naturals is a NASC Primary Supplier that passed the facility audit, the oil is third-party tested for purity, the fish is Friend of the Sea certified, and certificates of analysis are available.

Key features

Sardine and anchovy oil in natural triglyceride form
About 736 mg EPA and 506 mg DHA per 5 mL (as listed by a Canadian retailer)
Third-party purity tested, with certificates of analysis available
Friend of the Sea certified sourcing
Unflavoured liquid; 237 mL (8 fl oz) bottle
Made by a NASC-audited company

Who it suits (and who should skip it)

It suits owners of medium and large dogs who want a well-documented fish oil, and anyone who likes being able to read a certificate of analysis. A liquid is easier to adjust for dog size than capsules, which is useful in multi-dog homes. Fish oil is also a common question when owners notice a dull coat or more hair on the sofa than usual; our guide to removing dog hair from clothes handles the cleanup side.

Skip it if you have a small dog and want a product sized for them, or if you dislike handling a fishy-smelling liquid. Dogs on blood-thinning medication or with upcoming surgery should only start fish oil with their vet’s approval. We found no Health Canada NN number for this product; a code starting “NN” on one Canadian retailer is Nordic’s own product code, not a Health Canada number.

When comparing fish oils, look at the EPA and DHA per serving rather than the total oil volume on the front of the bottle, and check the fish source. Nordic Naturals lists both clearly, which makes it easy to show your vet exactly what your dog is getting.

Costs to know about

This is a consumable. The 237 mL bottle runs out quickly for big dogs, and the larger 16 oz bottle is listed on Amazon.com only, so Canadian owners will be reordering the smaller size more often. Liquid fish oils are generally kept in the fridge once opened, so check the label and plan for fridge space. How much to give is a question for your vet; follow the label.

How it compares

Purina FortiFlora is our digestive-support pick and also comes from a NASC-audited company. For joints, Cosequin DS Plus MSM is the mainstream choice, and many owners ask their vet about combining a joint supplement with fish oil.

Pros and cons

What we like

Third-party purity tested, certificates available
Friend of the Sea certified sourcing
NASC-audited manufacturer
Liquid is easy to adjust for dog size

Watch out for

Fishy smell; needs fridge space once opened
8 oz bottle runs out fast for big dogs
Larger 16 oz size not on Amazon.ca

Our rating: 4.2/5

Formula & science	4.5
Ease of use	4.0
Safety & trust	4.6
Value	4.0
US & Canada availability	4.1

Our rating is an editorial score based on the brand's published specs, independent reviews, safety and trust signals, value and availability in the US and Canada. It is not Amazon's customer rating, and brands do not pay for placement.

Frequently asked questions

How much EPA and DHA is in Nordic Naturals Omega-3 Pet?

A Canadian retailer lists about 736 mg EPA and 506 mg DHA per 5 mL. The oil comes from sardines and anchovies in natural triglyceride form. Check the label on your bottle for the current figures, and ask your vet how much suits your dog's size.

Does Nordic Naturals Omega-3 Pet need refrigeration?

Liquid fish oils are generally refrigerated after opening to keep them fresh, and that is the safe habit here too. Check the storage instructions printed on your bottle. If the oil smells rancid or very strong compared with when you opened it, replace it.

Is the same bottle sold on Amazon.ca and Amazon.com?

Yes. The 237 mL (8 fl oz) bottle uses the same ASIN on both stores. Amazon.com also lists a 16 oz bottle, which we did not find on Amazon.ca, so Canadian owners of large dogs will reorder the smaller size more often.

Does it have a Health Canada NN number?

We did not find one. One Canadian retailer shows a code starting with NN, but that is Nordic Naturals' own product code, not a Health Canada number. The company's trust signals are its NASC audit, third-party purity testing and Friend of the Sea certification.

This page is general information, not veterinary advice. Check with your vet before changing your pet's food or adding a supplement.

Nordic Naturals Omega-3 Pet Liquid Fish Oil