Human vs. Pet Fish Oil: What Actually Changes—and What Matters for Safety

Abstract Summary

Objective

Clarify practical differences between human-labeled and pet-labeled fish oils for feline administration, focusing on safety (additives) and dosing transparency.

Context

Veterinary dosing relies on EPA/DHA milligrams. Pet products are formulated and labeled for animals, while human products may include sweeteners or flavors and lack pet-specific guidance. Labeling frameworks also shape claims and disclosures for pet foods and supplements.

Methods Used

Approach

Identify potential hazards in human supplements such as xylitol gummies, essential-oil flavors, and certain additives. Outline when a vet may still direct use of a human softgel if it is plain, additive-free, and provides clear EPA/DHA content.

Data Collection

Veterinary sources caution that fish oils are generally safe, but side effects and platelet alterations can occur. Additive-related toxicities (notably xylitol) are well-documented in dogs and are undesirable for cats. Pet-specific labels improve clarity for mg EPA/DHA dosing.

Researchers' Summary of Findings

Impact on Health

Correct product selection reduces risks of GI upset and bleeding tendencies from overdosing or excipient issues. Clear labeling supports consistent, therapeutic EPA/DHA intake.

Health Implications

Check labels for xylitol, sweeteners, and flavors. Avoid cod liver oil for routine use due to variable vitamins A and D. Confirm EPA/DHA amounts and compute a cat-appropriate dose with your veterinarian.

Sustainability

Favor brands that disclose sourcing and oxidation controls and follow pet-labeling best practices aligned with evolving guidance.

DOI

10.2460/JAVMA.239.11.1441