Salmon oil for cats: what the label shows

By the PetFishOilGuide editorial team · Updated October 13, 2026 · How we compare

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Salmon oil for cats is a fish oil whose label names salmon as the source. Compare it with other fish oils by EPA plus DHA per mL and per serving. No safe upper limit exists for cats, so we give no dose. Ask your vet for an amount in milligrams of EPA and DHA.

Salmon oil is a common fish oil for pets. Its useful parts are the same omega-3 fats found in other fish oils, EPA and DHA. What differs between bottles is how much of them a serving holds. This page shows that from manufacturer label data. The wider comparison is on fish oil for cats. We do not test products, and we show no prices.

Salmon oil products for cats

These are the salmon-sourced oils in our catalog that are labeled for cats, or for dogs and cats, with published EPA and DHA. The dog-and-cat products also list dog directions, which we do not use here.

Label data from manufacturer websites and published label text, checked October 13, 2026. How we compare.

Salmon oil compared with blends

The salmon oils in the table list 130.9 to 261.7 mg of EPA+DHA per mL. Three cat-labeled liquid blends and sardine-anchovy oils (Nutramax Welactin Feline Omega-3 Liquid (4 fl oz), PetWellbeing Omega-3 Icelandic Fish Oil for Cats (8 fl oz pump) and Seapet Omega PURE Fish Oil for Cats (4 fl oz)) list 212 to 273.9 mg per mL, so the ranges overlap and the fish name does not predict strength. The sourcing differs too: Iceland Pure Salmon Oil Pharmaceutical Grade & Unscented (17 fl oz) names farmed Norwegian Atlantic salmon, while the blends name sardines, anchovies, herring or mackerel.

A lower number per mL is not a flaw. It means the same EPA and DHA takes a larger measure, which some owners find easier to handle with a small cat. It also means you cannot swap one oil for another by volume. See the full list in the cat comparison tables.

Reading a salmon oil label for a cat

1. Find EPA and DHA in milligrams per serving. NaturVet Salmon Oil for Cats (liquid pump) lists 645 mg in a teaspoon. Check how many pumps or mL the label directions give for a cat, since a serving here is not a cat's portion.
2. Divide by the mL to get strength. For that product it is 130.9 mg per mL.
3. Check the ingredient list for other oils or additives, and for a source of vitamin E such as tocopherols, which helps protect the oil.
4. Do not use dog directions on a bottle made for both species without asking your vet.

Cautions

• No safe upper limit has been published for cats at any life stage (Lenox, Today's Veterinary Practice, 2016). The dog limit does not apply.
• Fish oil can go rancid. Keep it sealed and cool, and discard it if it smells sharp or off.
• Possible effects include vomiting, diarrhea, and effects on blood clotting and wound healing. Call your vet if your cat has any of these or stops eating.
• Salmon oil is not a replacement for a vet visit when your cat has itchy skin, stiffness, or a kidney problem. See fish oil for cats with kidney disease.

For dogs, see salmon oil for dogs.

Salmon products without usable EPA/DHA numbers

We list these without ranking them, because the label figures are missing or do not add up.

• NaturVet Omega-Gold Soft Chews Plus Salmon Oil (dogs and cats): we could not read the maker's page; the only EPA and DHA figures we saw came from retailers (checked 2026-10-13) (checked October 13, 2026), so we cannot rank it.
• Vital Pet Life Salmon Oil for Dogs & Cats (32 fl oz): the published label figures are internally inconsistent (EPA and DHA exceed the stated total omega-3) (checked October 13, 2026), so we cannot rank it.

Page updated October 13, 2026. Label data is from manufacturer websites. This is not veterinary advice, and no veterinarian has reviewed it.