Loss of appetite after Fish Oil in dogs

242 reports to the FDA describe loss of appetite in dogs given Fish Oil. That is 16% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

242Reports
61%Marked serious
26%Recovered
24%Died or euthanised
36 daysTypical onset
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How soon it started

Same day
21 14%
1–2 days
14 9.2%
3–7 days
12 7.8%
1–4 weeks
21 14%
Over a month
85 56%

How the animals did

Recovered
56 23%
Recovered with lasting effects
6 2.5%
Still unwell when reported
80 33%
Died
12 5.0%
Euthanised
45 19%
Not known
43 18%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
24
4–7 years
44
8–11 years
88
12+ years
80

About this medicine

Type: medicine.

Questions owners ask

Can Fish Oil cause loss of appetite in dogs?
242 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 36 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Loss of appetite with similar medicines

All reported side effects of Fish Oil in dogs · Medicines most reported with loss of appetite