Drug profile

The FDA adverse-event record for Omega 3 Fatty Acids

190 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Omega 3 Fatty Acids. See the species affected, top reactions, and outcomes below.

190
adverse-event reports
6.3%
death-coded share
Dog
most-reported species
42
Vomiting - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
190
Total Reports
12
Deaths Reported
6.3%
Death Rate

Active Ingredients

Omega 3 Fatty Acids

Administration Routes

OralUnknown

Species Affected

Dog 167
Cat 17
Human 4
Unknown 1
Other Canids 1

Most Affected Breeds

Retriever - Labrador 35
Domestic Shorthair 11
Retriever - Golden 10
Shepherd Dog - German 9
Dog (unknown) 8
Boxer (German Boxer) 7
Bulldog 6
Unknown 5
Chihuahua 5
Crossbred Canine/dog 5

Most Reported Reactions

Vomiting 42
Diarrhoea 25
Lack of efficacy - NOS 24
Lethargy (see also Central nervous system depression in 'Neurological') 19
Decreased appetite 15
Behavioural disorder NOS 15
Emesis 12
Weight loss 12
Other abnormal test result NOS 11
Not eating 11
Elevated alanine aminotransferase (ALT) 11
Lethargy (see also Central nervous system depression in Neurological) 10

Outcome Breakdown

Recovered/Normal
66 (34.9%)
Outcome Unknown
60 (31.7%)
Ongoing
49 (25.9%)
Euthanized
7 (3.7%)
Died
5 (2.6%)
Recovered with Sequela
2 (1.1%)

Omega 3 Fatty Acids Adverse Event Insights

190 reports name Omega 3 Fatty Acids; 12 recorded a death outcome (6.3% of reported events, not a population-level mortality rate). Active ingredient: Omega 3 Fatty Acids. Administration routes: Oral, Unknown.

By species: Dog (167 reports), Cat (17 reports), Human (4 reports). By breed: Retriever - Labrador (35), Domestic Shorthair (11), Retriever - Golden (10).

Leading clinical signs: Vomiting (42), Diarrhoea (25), Lack of efficacy - NOS (24), Lethargy (see also Central nervous system depression in 'Neurological') (19). Outcome, 189 coded reports: Recovered/Normal leads at 34.9%.

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.