Fish oil (EPA + DHA) for cats

Sold as Welactin, Nordic Naturals Pet, generic. Published reference range, cited. Enter your cat's weight below.

Reference tool, not medical advice. Always confirm with your veterinarian.
Your cat's weight

Published dose range

The published veterinary reference range for fish oil (epa + dha) in cats is 20-40 mg per kg of body weight, given every 24h. In practice: combined EPA+DHA per kg daily.

Source: Veterinary Partner (VIN) →

Published range by weight

WeightFish oil (EPA + DHA) (published range)
6 lb cat54-109 mg
8 lb cat73-145 mg
10 lb cat91-181 mg
12 lb cat109-218 mg
15 lb cat136-272 mg

Computed from the published 20-40 mg/kg reference range, every 24h. Product strengths rarely split evenly, so round DOWN to the nearest practical dose and confirm with your vet.

Avoid cod liver oil (vitamin A/D overload).

Skip it or ask a vet first if

pancreatitis history (vet first)bleeding disordersbefore surgery

If you think you overdosed

Call the Pet Poison Helpline: 855-764-7661 or ASPCA Poison Control: 888-426-4435. Both are staffed 24/7 by veterinary toxicologists.

See also

Related supplement doses for cats

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