Is Tuna Safe for Dogs to Eat?

Many pet owners wonder whether it's safe to give tuna to their dogs. Technically, tuna isn’t toxic to dogs, but it should be given sparingly, if at all. This is because there are health risks associated with consuming fish, and research has revealed that certain types of fish are safer for dogs.

The Dangers of Mercury in Tuna

One significant concern with feeding tuna to dogs is the high levels of mercury found in the fish. Mercury accumulates in the body of fish depending on their lifespan and position in the food chain. Tuna, particularly albacore or bluefin tuna, tends to have very high mercury levels. Symptoms of mercury poisoning in dogs include tremors, poor coordination, impaired vision or vision loss, and sometimes damage to the heart and kidneys.

Since mercury levels vary across different fish species, even small amounts of tuna should be an occasional treat, if given at all. Opting for fish with lower mercury levels, such as salmon or sardines, provides similar nutritional benefits with fewer risks.

Safer Fish Alternatives for Dogs

Fish can be a great source of protein and omega-3 fatty acids, both of which promote healthy skin, coats, and joints in dogs. Safer options include:

• Salmon (cooked and boneless): Rich in omega-3s and gentle on dogs’ stomachs.
• Sardines (in water, without added salt): A convenient, nutrient-packed choice.
• Whitefish or cod: Lean, mild options suitable for most dogs.

Always ensure the fish is cooked, deboned, and free of seasonings to prevent choking hazards and digestive issues.

What to Do If Your Dog Eats Tuna

If your dog accidentally consumes tuna, monitor them closely for signs of an upset stomach, such as vomiting or diarrhea. While a small amount is unlikely to cause immediate harm, repeated exposure to tuna can increase mercury levels over time. If your dog shows unusual symptoms, contact your veterinarian for guidance.

Expert Advice on Fish in Pet Diets

Fish can be a healthy addition to your dog’s diet when chosen carefully. Stick to low-mercury fish and serve it in moderation as part of a balanced meal. Avoid feeding human-seasoned or processed fish products like tuna packed in oil or brine, which may upset your dog’s stomach.