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Strong Evidence 2 peer-reviewed studies cited

Salmon Oil (Omega-3)

Also known as: Fish Oil, Omega-3 Fatty Acids, EPA/DHA, Marine Oils

Overview

Salmon oil is a rich source of omega-3 fatty acids EPA and DHA, which are essential for dogs' skin, coat, joint, and brain health. Unlike plant-based omega-3s (ALA from flaxseed), fish-derived EPA and DHA are directly bioavailable to dogs.

How Salmon Oil (Omega-3) Works

EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are incorporated into cell membranes throughout the body, modulating inflammatory responses. EPA reduces production of inflammatory eicosanoids, while DHA is critical for brain and retinal development. In joints, EPA helps reduce cartilage degradation and inflammatory markers.

Benefits

  • Supports healthy skin and a shiny, glossy coat
  • Anti-inflammatory properties help with joint health and mobility
  • DHA supports cognitive development in puppies and cognitive function in senior dogs
  • May reduce itching and skin inflammation in dogs with allergies
  • Supports cardiovascular health

Side Effects & Cautions

  • Excess fish oil can cause loose stools or diarrhoea
  • May interact with blood-thinning medications
  • Quality concerns: rancid or contaminated fish oils can be harmful
  • High doses may affect blood clotting time

Who Should Use Salmon Oil (Omega-3)

All dogs benefit from omega-3s; particularly beneficial for dogs with joint issues, skin problems, puppies (brain development), and senior dogs.

Who Should Avoid It

Dogs on blood-thinning medication should consult a vet; dogs with fish allergies.

Recommended Concentration

1-5% of dog food formula; standalone supplements: 1000-2000mg per day for medium dogs

Scientific Evidence

2 peer-reviewed studies cited. All links lead to PubMed abstracts.

Multicenter veterinary practice assessment of the effects of omega-3 fatty acids on osteoarthritis in dogs

Dogs receiving omega-3 supplementation showed significant improvement in lameness and weight-bearing ability compared to controls.

Effects of dietary fatty acid supplementation on coat condition and skin function in dogs

Dietary fish oil supplementation significantly improved coat glossiness and reduced skin scaling in dogs with dermatological conditions.

Top Salmon Oil (Omega-3) Products We've Reviewed

Look for These on INCI Lists

Salmon Oil Fish Oil Omega-3 Fatty Acids EPA DHA