Can Dogs Eat Tuna?
Find out if Tuna is safe for dogs and cats.
Think your pet ate something toxic?
Call ASPCA Animal Poison Control Center: (888) 426-4435 or view emergency guide
Tuna
Tuna is a fish many cats love, but it should be an occasional treat rather than a staple. Canned tuna packed in water and with no added salt is best. Tuna packed in oil or brine is too fatty or salty.
Long-term feeding can lead to mercury accumulation and nutritional imbalances. Avoid tuna intended for humans as a regular meal replacement.
Is Tuna Safe for Dogs?
Safe occasionally in small amounts. Choose low-sodium, water-packed tuna. Mercury is a concern.
Is Tuna Safe for Cats?
Safe occasionally as a treat. Choose low-sodium, water-packed tuna. Mercury is a concern.
Preparation Notes
Use plain, water-packed tuna with no salt, oil, or seasonings. Limit portion size.
Recommended Amount
A small spoonful occasionally.
How Often?
No more than once or twice a week.
Symptoms to Watch For
- vomiting
- diarrhea
- mercury-toxicity
What If My Pet Ate Tuna?
If large amounts of tuna are eaten regularly, contact your vet to discuss mercury exposure.
Health Condition Considerations
Even if Tuna is generally safe, it may not be appropriate for pets with certain medical conditions. Always check with your veterinarian if your pet has been diagnosed with any of the following.
Chronic kidney disease
For Dogs: Limit · For Cats: Limit
High sodium load can worsen hypertension and fluid balance in CKD.
Pancreatitis
For Dogs: Limit · For Cats: Limit
High fat intake can trigger or worsen pancreatitis.
Obesity
For Dogs: Limit · For Cats: Limit
Calorie-dense; excess can contribute to weight gain.
Food allergies
For Dogs: FoodDetail.consult_vet · For Cats: FoodDetail.consult_vet
Fish ingredients are common allergens; reactions are individual.
Heart disease/hypertension
For Dogs: Limit · For Cats: Limit
High sodium can worsen hypertension and fluid retention.
Inflammatory bowel disease (IBD)
For Dogs: Limit · For Cats: Limit
High fat can exacerbate GI inflammation.
Urinary tract disease/bladder stones
For Dogs: Limit · For Cats: Limit
Purines can increase uric acid and stone risk in susceptible pets.
Hyperlipidemia
For Dogs: Limit · For Cats: Limit
High fat content worsens hyperlipidemia.
Gastrointestinal sensitivity
For Dogs: Limit · For Cats: Limit
High fat may irritate a sensitive gastrointestinal tract.
Purine metabolism disorders
For Dogs: Limit · For Cats: Limit
High purine content can trigger urate crystal/stone formation.
Safe Alternatives
Sources
Vet's Note
PetPilot provides general information for educational purposes. While we reference authoritative veterinary organizations, this page has not been individually reviewed by a veterinarian for your specific pet. Individual animals may react differently based on age, weight, breed, health conditions, and amount consumed. Always consult your veterinarian or a poison control center for personalized advice, especially if your pet is ill, injured, pregnant, nursing, or on medication.