Can Dogs Eat Tuna? All You Need To Know

Can Dogs eat tuna fish? Would canned tuna be acceptable? Learn more about when and how to feed your dog tuna in our comprehensive guide on tuna for dogs. Fish is a vital component of a balanced human diet. Many of us often have tuna or sardine cans on hand.

Because Tuna is one of the most commonly consumed fish, you may have encountered the situation when your canine companion pleaded for a taste when you were opening a can of Tuna or preparing a tuna steak for the grill. And naturally, this may drive you to wonder can dog eat canned Tuna. Moreover, in the first place, Can Dogs Eat Tuna? 

Well, the quick answer is yes. It can be a very nutritious supplement to their diet, but it must be included with caution. The way you offer Tuna and how much you feed plays a crucial role in determining whether or not Tuna is suitable for your dog.

Having said that, peruse ahead to find out all your questions, such as whether dogs eat Tuna, canned Tuna, the advantages, concerns, how much they should eat, and which type of Tuna is best for them answered in detail.

Can dogs eat Tuna?

Fish is extremely prevalent as a supplement to a dog’s regular diet. In reality, several species of seafood, including Tuna, are beneficial to dogs.

However, when it comes to the question can dogs eat tuna fish, the perspectives often vary. But the simple answer is yes; your canine companion can eat Tuna Fish. 

Tuna, like other fish, is high in lean protein and Omega 3 fatty acids, which have anti-inflammatory qualities, strengthen cardiovascular systems and promote muscular growth.

Tuna also contains beneficial minerals and vitamins (potassium, phosphorus, magnesium, and selenium) (B3, B6, and B12). Nevertheless, when slaking the mounting confusions revolving around, can dog eat tuna fish, remember moderation is crucial.

Tuna Fish is safe for dogs, to be consumed in small amounts and only on rare occasions. Most dogs are fine with a small amount now and again. 

Furthermore, Consider what kind of Tuna you’re giving your dog: smaller species like skipjack and albacore tuna should be preferred over larger tuna species like yellowfin or bluefin tuna.

Every dog is different, so if you want to feed Tuna to your dog, start with very modest amounts at first to observe how they react.

The Benefits Of Tuna

Fish constitute an important nutritional value in a balanced diet. Tuna Fish is no exception in this case.

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In fact, like most fish species, it is a good source of protein, omega-3 fatty acids, and vitamins and minerals. With so many beneficial elements to offer, the advantages of tuna fish for your canine companion are numerous:

  • The protein level of Tuna is one of the main reasons dog parents consider putting it in their canine’s diet. When you include Tuna in your dog’s fish diet, you’re not only allowing it to gain in terms of lean protein, but you’re also protecting it from unnecessary fat.
  • Tuna is organically packed with a number of vitamin family members, including B3, B6, B12, and others, so your canine companion will benefit from a stronger immune system.
  • Tuna Fish contains a high quantity of body-healthy Omega-3 fatty acids, which help reduce inflammation in the body, improve dog skin condition and irritation, decreases arrhythmia, helps in controlling cholesterol levels, promote a healthier heart, decrease the risks of blood clots, and strengthen dog vision. 
  • Tuna helps dogs strengthen their muscles, which is extremely vital for healthy existence. 
  • Selenium, magnesium, phosphorus, and potassium are all necessary minerals for dogs, found in Tuna Fish. 

The Risks Of Tuna

Although there are several benefits, the risk factors of tuna fish for dogs linger close around the perimeters.

In fact, serving and amount play a crucial role in establishing the fine line between the risk and benefits that can be reaped from Tuna Fish. The common risk factors include: 

High levels of Mercury.

In comparison to other species, fresh Tuna has an extremely high mercury content. As a result, consuming an excessive amount of tuna fish might result in mercury poisoning.

Mercury poisoning can be fatal to a dog’s health. Dogs and people alike can be poisoned by eating too much heavy metal, but dogs’ tolerance levels are typically lower than their owners’. The common indications of mercury poisoning are: 

  • Anxiety 
  • Anxiousness, 
  • Kidney damage, 
  • Hair loss
  • Blindness 
  • Bloody/watery diarrhea, 
  • Vomiting blood
  • Loss of sensation in the paws
  • Lack of coordination and tremors.

While a minuscule fraction of any tuna will not hurt your dog, but if you have been giving Tuna to your dog on a regular basis and observe these symptoms, you should seek medical help.

High Sodium Levels

Tuna (particularly canned Tuna) has a high sodium content, which can be detrimental. High blood pressure, often linked to high salt levels, can lead to heart disease or stroke.

Because sodium can be hazardous to dogs in big doses, it is advisable to ingest it in moderation. Sodium poisoning symptoms to watch out for include:

  • Excessive urination and extreme thirst 
  • Tongue swelling. 
  • Convulsions 
  • Lack of appetite  
  • Lethargy 
  • Nausea

High levels of Protein

While dogs require a lot of nutritious animal protein in their meals, Tuna’s high protein content might be difficult for some dogs to digest, particularly if they aren’t used to it.

While it is not harmful, it might cause your canine companion to have an upset stomach, which is unpleasant for them and for you in terms of cleanup. Whenever you introduce a new meal to your dog’s diet, keep a close check on them to see how they react.

What Type Of Tuna Can Dogs Eat?

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Let’s take a look at which kind of Tuna is safe for dogs to eat. But, before we go any further, keep in mind that dogs can eat the same varieties of Tuna as humans — raw, cooked, and canned – with a few exceptions.

  • Pay attention to the source of Tuna while purchasing any variety, whether fresh or canned. Only roughly five different forms of Tuna occur on human plates, despite the fact that there are 29 different kinds of Tuna. Skipjack, yellowfin, albacore, bigeye, and bluefin tuna are among them. These forms of Tuna are regarded safe for human eating, and your dog should be able to consume them as well.
  • The mercury concentration in Tuna is the most serious problem when feeding it to dogs. There are various kinds of Tuna on the market, some of which contain more mercury than others. Skipjack tuna and albacore tuna are the best-canned tuna options for your dog. Smaller Tuna, such as yellowfin and bluefin, have less mercury than larger Tuna, such as yellowfin and bluefin.
  • The most likely option is canned Tuna. Simply ensure that the Tuna is packed in water rather than oil. Oil isn’t a dangerous component for dogs to eat. Still, it’s heavy in calories and provides no nutritional benefit for them, so it’s just empty calories that can cause obesity and other health threats.
  • Many canned tuna products are rich in salt, which you should avoid feeding to your dog. Instead, look for brands that do not include any salt. Dehydration in dogs can be caused by high salt levels, leading to excessive water consumption, which, in turn, can lead to internal health issues.
  • If you wish to offer raw Tuna to your dog, make sure the fish is completely cleaned and that all bones have been removed. Raw Tuna is delicious to dogs, and they will likely eat it whole, oblivious to the sharp fragments that can cut their throats and cause problems in their digestive system.
  • If you want to cook your dog’s Tuna, bake it or broil it instead of using any additional spices, such as salt. It may cause them to feel nauseous and upset their stomach. Also, avoid canned Tuna that has been seasoned with garlic or other spices. Different spices are difficult for dogs to digest, and garlic is toxic to dogs, causing serious health problems. 

How Much Tuna Can Dogs Eat?

If provided in little amounts on an occasional basis, Tuna is probably the best dog food to go for your canine companion. Basically, moderation is essential. Large amounts are the actual red flags. But then exactly how much is good to go? 

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Well, Tuna Fish can be given to canines once or twice a week in small, controlled doses. It’s something that should only be used in moderation, according to experts. It should be included in their diet as a once-in-a-while delight rather than a daily requirement.

The quantity can be proportioned with the inclusion in the dog food, depending on their weight. In general, small to medium dogs ( with weight ranging between 20 to 40 pounds) can feed on one can of Tuna about once every three weeks to nine days, respectively.

Whereas canines weighing 90 pounds or more, on the other hand, can eat a can of Tuna once every five days.

Is Tuna Beneficial For Dogs?

Tuna, like all forms of fish, is an excellent source of meat and protein for dogs. Enriched with Omega-3 fatty acids, which can help your dog’s skin and coat look silky, shiny, and smooth, Tuna Fish harbors several benefits.

This fish is also anti-inflammatory and beneficial to the cardiovascular and skin systems. Tuna can aid your dog’s immune system, joints, and bone strength, as well as provide some energy.

This will undoubtedly be a welcome treat for pups in their early stages of development as well as senior pets.

Due to the high concentration of vitamins and minerals present in Tuna, it is also incredibly good for the overall development and function of many of the body’s systems.

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Excessive amounts of Tuna, on the other hand, can be harmful to dogs. You don’t want to offer your dog too much of this fish because it could make them sick, causing some serious health issues.

Only by incorporating it in modest amounts on a regular basis can the optimum outcomes be guaranteed.

Can dogs eat canned salmon or Tuna?

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Salmon and Tuna can be either excellent protein sources or potential dangers, depending on how much and in what forms you feed your dog. Tuna or salmon canned in water is a healthy treat for your dog.

Look for fish packaged in water with no extra salt, chemicals, or added seasonings, when buying tinned fish. As long as you give your dog modest amounts of canned salmon and tuna, it’s safe. 

Can Dogs Eat Tuna Salad?

Dogs can eat tuna salad, but it should not be a regular part of their diet. In fact, specialists advise against feeding tuna salad to your dog, especially over frequent periods.

However, as long as none of the ingredients in your tuna salad are poisonous to dogs, your dog should be OK sneaking a piece or two, once or twice. 

Can Dogs Eat Raw Tuna?

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No way. Raw Tuna Fish is not the wisest choice for your canine companion. Raw Tuna exposes your dog to the possibility of parasites and bacteria that can be potentially harmful.

Because of parasites like Anisakidae and Opisthorchiidae, as well as pathogens like salmonella, raw Tuna should never be served to your dog. Your canine could become ill from a foodborne infection, which causes symptoms like diarrhea, vomiting, and fever.

Also, remember that raw fish includes the enzyme thiaminase, which might deactivate thiamin (vitamin B1) in your dog’s system. A veterinarian should be seen once more if your dog has consumed raw Tuna and displayed these symptoms.

Can Dogs Eat Tuna With Mayo?

In general terms, yes, dogs can. However, remember Tuna has a high mercury threat, while mayo has a high-fat content, so it is not a staple diet. As a result, feeding your dog tuna with mayonnaise is not typically recommended.

Although it is not life-threatening, feeding your dog too much mayonnaise should be considered with caution. Fats are an essential component of a dog’s diet. However, both too much and too little can pose a possible health threat.

In dogs, eating too much fat can cause stomach distress and severe diarrhea. Furthermore, a high-fat diet causes obesity in dogs, and overweight dogs are more susceptible to various health issues.

So, if you’re going to offer your canine companion a tuna fish sandwich, make it a special occasion rather than making mayo or Tuna a regular part of its diet.

Is Tuna Good For Canines With Kidney Disease?

Chronic health disorders, such as kidney disease necessitate a stringent dietary adjustment to preserve their health.

And thereby, Protein, phosphorus, and sodium should all be reduced in a diet designed for dogs with chronic kidney disease, but dietary omega-3 fatty acids should be increased.

Tuna is not only a good source of omega-3 fatty acids, but it’s also high in Protein. And canned Tuna, particularly if preserved in brine, is likely to be high in sodium. As a result, feeding Tuna to dogs with kidney disease is strongly discouraged. 

Unless your veterinarian has made particular recommendations for your dog’s diet, it’s also a good idea to discover an alternative source of omega-3 fatty acids for your dog.

How Can I Feed My Dog Tuna?

If you’re going to cook Tuna for your pet, buy it in stakes and prepare it by steaming, grilling, or baking it. Remove any bones, and don’t season with salt or spices.

Fishbones are extremely thin, and if swallowed, they can irritate or puncture your dog’s digestive tract lining, causing discomfort or bodily injury.

Furthermore, the fins, tail, and head of the tuna fish should not be served to dogs since they can cause choking and oral damage and raise the risk of intestinal perforation. Before offering fresh Tuna to your pet, make sure it’s completely washed, deboned, and filleted.

If you don’t want to cook, canned Tuna is a good alternative; make sure it’s packed in water and has no seasonings or additives.

Can Tuna Treat Sensitive Stomachs In Dogs?

All dogs are different. Food sensitivities and intolerances might range from one animal to the next. As a result, there is no hard-set rule. On the other hand, fish can help overcome sensitivity due to lower fat levels, according to specialists and nutritionists.

As a result, Tuna has a good probability of helping a dog with sensitive stomachs. However, this does not imply that your dog’s sensitivity will simply vanish. It just indicates that you might be able to keep things under control to some extent.

Furthermore, it is generally advisable to start with a small amount of new food for your dog. Before allowing your dog to eat any more, wait to see how they react to the ingredients. 

Does Dog Food Contain Tuna?

Well, Yes, many commercial dog food product contains tuna fish. Nevertheless, it is not the most common fish ingredient; generally, it is Salmon or Flounder.

Alternatives To Tuna For Dogs

The possible alternatives to Tuna for dogs include salmon, Herring, Whiting, Shrimp, Eggs, Cod, Flounder, Whitefish, and Catfish. 

Can dogs eat tuna cat food?

While we have thoroughly reflected on whether dogs eat Tuna, let us understand whether dogs eat tuna cat food and what happens when dogs consume tuna cat food.

The direct answer to this is no; dogs cannot eat tuna cat food. The tuna content in cat food can prove harmful for your canine. 

Also, if you own a cat, monitor your dog’s food sneaking behaviors. Dogs often love to eat out of the cat bowl, and many cat meals contain tuna fish. Make sure your canine companion isn’t doing this so that they don’t get sick.

After all, cats and dogs have quite different nutritional needs, so while experimenting with your cat’s food once or twice may not be harmful, you should make sure that both animals are provided a diet that meets their individual nutritional requirements in the long run.

The Best Way to Feed Tuna Fish to Your Canine 

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Tuna can be fed to your dog in a variety of ways:

  • If you want to cook your dog’s Tuna, bake it or broil it instead of using any additional spices, such as salt. Even if you believe meat is tasteless, remember dogs find it delectable. Therefore, it is advisable to bake or broil the fish instead of using salt, garlic, oil, or marinades.
  • If you want to share your tuna-mayo sandwich with your dog, you can do so, and they’ll probably enjoy the mayo flavor as well. However, keep in mind that mayo is quite fattening, so don’t give them too much, and check the rest of the ingredients to make sure there aren’t any other red-flag substances for dogs. Onion and garlic, for example, are harmful to dogs. Always double-check the label.
  • Tuna can also be fed as tuna juice, which can be given to dogs more freely because it doesn’t have the same innate difficulties as tuna flesh. However, it is best not to give them too much juice at once to increase their intake gradually.
  • If you offer canned Tuna to your dog, be sure it’s packaged in water rather than oil. Oil isn’t a dangerous element for dogs to eat, but it’s heavy in calories and can contribute to obesity. An inflamed pancreas can also be caused by eating too much oil. If this happens regularly, it can lead to major health problems in puppies.
  • If you wish to offer raw Tuna to your dog, make sure the fish is completely cleaned and that all bones have been removed. 

Dogs’ stomachs are remarkably delicate, and they sometimes react adversely to meals they aren’t used to. As a result, whatever type of fish you decide to feed your dog, make sure you consult your veterinarian beforehand.

While most are acceptable, such as Tuna, there are times when you should avoid particular meals based on your dog’s health. If your veterinarian gives you the go-ahead, pay close attention to how you prepare your dog’s food and see how much they appreciate their new toy!


While Tuna is a debatable choice for humans and dogs, it could be quite beneficial if consumed in moderation. Tuna, being a larger fish than others, has a higher concentration of mercury.

As a result, when buying Tuna for your dogs, choose one that is short-lived, not coated in seasoning if canned, and contains as few bones as possible. Moreover, as long as Tuna Fish is served in the right amounts and way, the chances of reaping benefits are quite high. 


Is Tuna a good snack for dogs?

Yes, if given in moderate amounts and on occasional periods, Tuna packed with a number of nutritional content proves to make good snack options for dogs.

Will canned Tuna hurt my dog?

As long you follow the basic ground rules of feeding canned Tuna, it will not harm your canine companion. Canned Tuna can make up a nutritious and protein-rich snack for your dog.
Remember that canned Tuna should be served in tiny, reasonable portions, preferably skipjack or albacore tuna. Look out for any additional salt, seasonings, or other additives. Furthermore, canned Tuna that has been cooked in water rather than oil is recommended. 

Can dogs eat Tuna every day?

It’s a Hard No. To abstain from feeding significant amounts of mercury, you should never give your dog tuna regularly. High levels of mercury can be fatal for dogs. 

About the author

I'm Gulshan, a passionate pet enthusiast. Dive into my world where I share tips, stories, and snapshots of my animal adventures. Here, pets are more than just animals; they're heartbeats that enrich our lives. Join our journey!