Can my dog eat fish oil?
A little.
Plain omega-3 fish oil, dosed by weight, is good for dogs. Cod liver oil is a different product and can overload them with vitamins A and D.
Thinking of giving it?
How much is fineDog-specific omega-3, dosed by weight on the bottle. Avoid cod liver oil unless a vet says otherwise.
WhyOmega-3 helps skin, coat and joints. Cod liver oil carries vitamins A and D at levels that accumulate.
Already ate it?
If they ate itA few capsules: expect a loose stool at most. A whole bottle can bring vomiting and diarrhoea, and a very fatty dose can trigger pancreatitis — call your vet if vomiting keeps going or their belly hurts.
Watch forVomiting, diarrhoea or a greasy stool; repeated vomiting or a painful belly over the next day or two.
Reviewed: 20 October 2026
A guide, not a diagnosis. If your dog seems unwell, call your vet.
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