Can Dogs Eat Fish? A Comprehensive Guide

Wondering “can dogs eat fish?” Yes, it’s often a healthy addition to their diet, but it’s important to know the risks and the benefits for your dog’s safety.

can dogs eat fish?

The question of can dogs eat fish is one that pet owners often wonder about. While yes, fish is safe and even healthy for dogs to eat, with the increasing popularity of diverse diets for pets, including fish-based dog foods, it’s important to understand the benefits and potential risks involved in feeding fish to dogs. 

Are Fish Safe for Dogs to Eat?

Yes, fish can be a safe and beneficial addition to a dog’s diet, but there are certain precautions to consider:

  • Choose the Right Fish: Some fish are better for dogs than others. For example, salmon is a good choice because of its high omega-3 fatty acid content. Avoid fish with high levels of mercury in them, like tuna and swordfish.
  • Proper Preparation: Fish should be thoroughly cooked to kill any harmful parasites and bacteria. Don’t feed raw fish to dogs, and make sure that the fish is deboned before serving, as bones pose a choking hazard or may cause internal blockages to dogs.
  • Moderation is Key: Overconsumption of fish can lead to vitamin and mineral imbalances, so feed your dog fish in moderation.
  • Beware of Allergies: Some dogs may be allergic to fish. Introduce fish into your dog’s diet gradually and monitor for any negative reactions.
  • Avoid Seasonings and Oils: Cook the fish without added oils, seasonings, or sauces, as they can be harmful to dogs.

In summary, when prepared correctly and given gradually in moderation, fish can be a safe and nutritious addition to your dog’s diet, offering benefits like high-quality protein and omega-3 fatty acids.

 How Much Fish Can Dogs Eat?

The amount of fish a dog can safely eat depends on several factors, including the dog’s size, breed, overall health, and regular diet. Here are some general guidelines:

  1. Percentage of Diet: Generally, fish should not make up more than 10% of your dog’s total diet. The majority of their nutrition should come from a well-balanced diet.
  2. Frequency: Feeding your dog fish should not be a daily meal. Variety in protein sources is important.
  3. Health Considerations: Dogs with specific health issues or dietary needs might require more specific and tailored advice.
  4. Puppy vs. Adult Dog: Puppies and adult dogs have different nutritional needs. While fish can be a good protein source for puppies, it should be incorporated in moderation and in alongside puppy-formulated food.
  5. Consult a Veterinarian: It’s always best to consult a veterinarian before making significant changes to your dog’s diet. They can provide specific recommendations based on your dog’s personal needs.

Determining the safe amount of fish for a dog to eat depends on their size and overall dietary needs. Larger breeds can usually eat more fish compared to smaller breeds due to their higher caloric needs.

Here’s a rough guideline:

  • Extra Small (<10 lbs): For these very small dogs, a teaspoon-sized portion of cooked, deboned fish is sufficient. 
  • Small (10-25 lbs): Small dogs can have around 1 tablespoon of cooked, deboned fish.
  • Medium (25-60 lbs): Medium-sized dogs can consume about 1-2 tablespoons of fish.
  • Large (60-100 lbs): For large breeds, approximately 1/2 a cup of cooked fish. Ensure this is not more than 10% of their daily food intake, offered once or twice a week.
  • Giant (100+ lbs): Giant breeds can have up to a 3/4 cup of cooked, deboned fish. This should not comprise more than 10% of their total diet.

Remember, these amounts are general guidelines and might need adjustment based on your dog’s individual health, activity level, and specific dietary needs.

can dogs eat fish

Nutritional Benefits of Fish for Dogs

Fish is a great source of protein, which is essential for the healthy growth and maintenance of muscles in dogs. It’s also full of omega-3 fatty acids, which can improve skin and coat health, reduce inflammation, and support brain and eye development.

Here are some key nutritional benefits of fish for dogs:

  1. High-Quality Protein: Fish is an excellent source of high-quality protein, which is important for a dog’s overall health. Protein aids in muscle growth, tissue repair, and supports overall body functions.
  2. Omega-3 Fatty Acids: Fish are rich in omega-3 fatty acids. These fatty acids are beneficial for:
  • Skin and Coat Health: Promotes skin health and a shiny coat.
  • Anti-Inflammatory: Helpful for dogs with arthritis or other inflammatory conditions.
  • Brain Development: Particularly important for the development of puppies.
  • Heart Health: Supportive in cardiovascular health.
  1. Low in Saturated Fats: Many types of fish are low in saturated fats, making them a healthy option for dogs, especially those needing to manage their weight.
  2. Rich in Vitamins and Minerals: Fish is a good source of various vitamins and minerals, including:
  • Vitamin D: Essential for bone health and immune function.
  • Vitamin B12: Helps with energy production and brain health.
  • Calcium and Phosphorus: Good for healthy bones and teeth.
  • Selenium: Has antioxidant properties and supports immune health.

Preparation Tips

When introducing fish into your dog’s diet, do so gradually to avoid digestive issues and an upset stomach. It’s also crucial to only serve it in moderation. Fish can be served:

  • Cooked and Plain: Steamed, boiled, or baked without any added oils, seasonings, or sauces.
  • As a Treat or Supplement: Not as the main diet but as part of an occasional treat.
  • Mixed with Other Foods: Can be mixed with regular dog food to improve flavor and nutritional value.


Fish is not a common allergen for dogs, but like any food, it is possible for dogs to develop an allergy to it. If your dog is allergic to fish, you might notice symptoms including:

  • Skin Issues: Itching, redness, or bald patches.
  • Gastrointestinal Problems: Vomiting or diarrhea.
  • Ear Infections: Frequent or recurring ear problems.
  • Chronic Licking, Chewing, or Biting: Particularly around the paws and areas of the body.

Allergy Prevention

  • Dietary Diversity: Introducing a variety of proteins at a young age can sometimes help in preventing food allergies.
  • Observation: Regularly observe your dog for any signs of allergic reactions, especially when introducing new foods into their diet.

It’s important to remember that each dog is unique, and what causes an allergic reaction in one dog may not do so to another. If you think your dog may have a food allergy, it’s best to consult with a veterinarian for an accurate diagnosis and personalized treatment plan.


What Types of Fish are Good for Dogs?

Not all fish are the same when it comes to a dog’s diet. Some better options are:
Salmon: Highly nutritious but needs to be cooked to avoid the risk of parasites.
Sardines: Small and usually safe from heavy metals. Can be served canned in water.
Whitefish: Low in fat and calories, making it a good option for overweight dogs.

 What Fish Can Dogs Not Eat?

Certain kinds of fish should be avoided because of possible health risks. Here are some types of fish and seafood that dogs should not eat:
1. Fish High in Mercury: Dogs should avoid fish like:
– Tuna (especially albacore tuna)
– Swordfish
– King mackerel
– Tilefish
– Shark
2. Raw Fish: Feeding raw fish can be a risk due to the presence of parasites and other harmful bacteria, such as salmonella or listeria. These can cause serious health issues in dogs.
3. Fish with Small Bones: Small, brittle bones, like those in smaller fish can be a choking hazard and may cause internal blockages or harm the digestive tract.
4. Fish with Thorns or Spines: Certain types of fish have spines or thorns that can be dangerous if eaten and could cause injury or choking.
5. Shellfish: Shellfish, like shrimp, crab, or lobster, can cause allergies in some dogs. Shellfish must be fully cooked and properly cleaned before offering to a dog, and it’s wise to start with a small amount to monitor for allergic reactions.
6. Fish with Heavy Contaminants: Avoid fish from polluted waters, as they may contain harmful chemicals and pollutants.
7. Seasoned or Fried Fish: Fish prepared with garlic, onion, salt, spices, breading, or any kind of sauce can be harmful to dogs. 

Can Dogs Eat Fish Skin?

Fish skin can be safe for dogs to eat if it’s prepared correctly. However, there are some considerations. Firstly, make sure the fish skin is thoroughly cooked without any added seasonings, oils, or butter, do not feed dogs raw fish skin, as it can contain harmful parasites. Fish skin should be given in moderation due to its high fat content, which could lead to obesity or cause gastrointestinal upset in some dogs. Moreover, some dogs may be allergic to fish or fish skin, so it’s important to introduce it gradually and monitor for any adverse reactions.

Can Dogs Eat Fish Bones?

Feeding fish bones to dogs is generally not recommended due to several risks, such as choking hazard concerns. Small fish bones can easily be swallowed and get lodged in the throat, causing choking, or they could splinter and cause punctures or obstructions in the gastrointestinal tract. Bones can cause blockages in the intestines and they can be hard and brittle, posing a risk to a dog’s teeth when chewed.

Can Dogs Eat Fish Sticks or Fried Fish?

It is not recommended for dogs to eat fried fish or fish sticks for health reasons. Fried fish is often cooked in oils that increase their fat content, which can lead to obesity and other health problems in dogs. The seasoning and salt contained in fried fish can be harmful, especially garlic and onions, which are toxic to dogs. Additionally, the breading or batter used for fried fish and fish sticks often contain ingredients that are of no nutritional benefit to dogs. These ingredients could also create issues in dogs with grain allergies. 

Can Puppies Eat Fish?

Fish can be a healthy addition to a puppy’s diet when introduced properly and fed in moderation. It offers important nutrients to support growth and development. Always consult a vet before introducing your pet to new foods. Here are certain guidelines and precautions to consider for their health and safety:
Age Consideration: Puppies should be at least 12 weeks old before introducing fish into their diet, and it should be done gradually.
Cooked and Boneless: The fish should be thoroughly cooked to kill any parasites and bacteria. Ensure all bones are removed to prevent choking and internal injuries.
Avoid Certain Types: Avoid fish that are high in mercury like tuna, swordfish, and mackerel.
Small Portion: Start with small amounts to see how the puppy reacts, both in terms of taste and digestion.
Moderation: Fish should not be the primary component of the puppy’s diet.
No Seasonings or Oils: Cook the fish plain, without any added salt, spices, oils, or sauces.

Can Dogs Eat Tuna Fish?

Dogs can eat tuna, but it should be given with caution and in moderation due to concerns about mercury content and the way it’s prepared. When choosing canned tuna, select tuna in water rather than oil, and ensure it has no added spices or salt. Fresh tuna should be cooked thoroughly and without any oils, butter, or seasoning. As always, consult with a vet before introducing new foods to your dog’s diet.


Creating homemade fish recipes for dogs can be a fun and nutritious way to add variety to their diet. Here are a few simple and dog-friendly fish recipes. Remember to choose fish that are safe for dogs, such as salmon, sardines, or mackerel, and always cook the fish thoroughly and remove all bones.

1. Simple Steamed Fish and Veggies

  • Steam or boil the fish until it’s fully cooked.
  • Steam the carrots and green beans until they’re soft.
  • Mix the steamed vegetables with the cooked fish.
  • Drizzle with a small amount of olive oil for added healthy fats (optional).
  • Allow the mixture to cool before serving it to your dog.

2. Sardine Special

  • Mash 1 can of sardines in a bowl.
  • Mix in ½ cup of cooked oatmeal and ¼ cup of peas.
  • Serve at room temperature.

General Tips:

  • Always let the food cool to room temperature before serving.
  • Remove all bones from fish to prevent choking or internal injury.
  • Consult with a vet before making major changes to your dog’s diet, especially if your dog has health concerns or specific dietary needs.

These recipes can provide a healthy and delicious change for your dog, but they should not replace a balanced commercial dog food diet. They can be used as occasional treats or supplements. Before making any major changes to your dog’s diet, including adding fish, it’s important to discuss with a veterinarian first. They can offer insight and feedback based on your dog’s own personal dietary needs and health.

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