Meat & Protein
Tuna
Safe in Moderation
Tuna can generally be given to dogs in small amounts, but it should not be a regular major protein source because of concerns including mercury and, for canned products, sodium.
- Preparation Matters
- High Sodium
Safe part
Small amounts of plain, fully cooked tuna prepared without added salt or seasoning.
Avoid
Large or frequent amounts, heavily salted tuna and preparations containing problematic ingredients.
Preparation
Choose plain, fully cooked tuna. If using canned tuna, prefer products without added salt and serve only a small amount.
Serving guidance
Small amounts occasionally rather than as a routine protein source.
Nutritional note
Tuna provides protein, but mercury exposure is an important reason not to make it a frequent staple.
Did your dog already eat some?
A small amount of tuna is generally not an emergency. Concern increases with large or repeated consumption.
Why we say this
Dogs can eat tuna, but tuna can contain more mercury than some other fish. Canned tuna may also contain substantial sodium depending on the product.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- FDA — Advice About Eating Fish
- UC Davis School of Veterinary Medicine — Treats and Additional Foods
Confidence: Moderate · Last reviewed 2026-09-10