DIET & NUTRITION
6 min

How To Cook Fish for Dogs: A Canine Nutritionist’s Guide

Thinking of adding fish to your dog’s diet? It’s easier than you think! Dog nutritionist Arpita T shares expert tips on selecting, cooking, and storing fish for dogs.
Table of contents
When it comes to meat sources for dogs, fish is a nutritional powerhouse, offering high-quality protein, essential vitamins, and healthy fats. But to truly harness the benefits of this superfood, it’s crucial to know which are the best fishes for dogs, the advantages they offer, and how to cook fish for dogs in the best and safest ways possible.
Without further ado, let’s explore the best ways to cook fish for dogs in a way that is both nutritious and safe!
a ramen bowl with fish
Add some fin-tastic flavor to your dog’s diet with fish!

How to Select the Best Fish for Your Dog

When choosing the right type of fish for your dog, it’s essential to consider their nutritional value and suitability for their health. Fish can be broadly categorised into white fish (freshwater) and fatty fish (saltwater), each offering distinct benefits.
1) White fish/Freshwater fish
White fish, commonly found in freshwater rivers such as rohu, katla, and hilsa, are an excellent source of lean protein. While white fish may be lower in the fatty acids found in fatty fish, they make up for it by being packed with essential vitamins and minerals, such as B vitamins, phosphorus, and selenium. These nutrients play a vital role in supporting immune health and promoting the vitality of your dog’s skin and coat.
Lean and easily digestible, white fish is an ideal choice for dogs with sensitive stomachs or those prone to obesity. Their low-fat content makes them ideal for dogs needing to maintain or lose weight, or for those with less active lifestyles.

2) Fatty Fish/Saltwater Fish
Fatty saltwater fishes such as sardines, mackerel, and anchovies are rich in omega-3 fatty acids, which support heart health, reduce inflammation, and enhance their coat. They are also packed with vitamin D, which is crucial for maintaining strong bones. These nutrient-dense fishes are great for promoting skin health, reducing joint inflammation, and boosting cognitive function.
Small fatty fishes like anchovies and sardines are also ideal for dogs due to their soft, easily crushed bones, reducing the risk of choking. Unlike larger fish, sardines and anchovies also accumulate fewer toxins like mercury, making them safer for your dog. 
fishes in a bowl
Small but mighty! Crisp fatty fishes bring big benefits to your dog’s bowl.

How to Cook Fish for Dogs: Three, Simple Methods

When cooking fish for your dog, simplicity is key. Choose methods that avoid oil, seasoning, or other harmful additives. Boiling, steaming, and grilling are three simple, dog-friendly methods for cooking fish. Here’s how to prepare fish using each of these techniques:
1) How to Boil Fish for Dogs
Boiling is one of the safest and simplest ways to prepare fish for dogs, as it preserves most nutrients while removing any potential toxins.
  • Clean and gut the fish, removing all bones. Alternatively, you can buy de-gutted fish from a trusted vendor (like Fresh to Home, Licious, etc.). You can also remove the bones after cooking, as it’s easier to do once the fish is fully cooked. For small fishes like sardines, where removing bones manually may be difficult, grind and strain the fish after boiling.
  • Boil the fish in plain water over low to medium heat, without adding salt, spices, or seasonings.
  • Once cooked, allow the fish to cool completely before serving. Properly cooked fish should be opaque and easily flake apart with a fork. The flesh should change from translucent to a solid white or light colour, depending on the type of fish. Avoid any raw, pink, or translucent sections, as they indicate the fish is undercooked.
  • Thoroughly grind the fish, ensuring all bones are finely ground and strained for safety.

2) How to Steam Fish for Dogs
Steaming fish is a gentle cooking method that helps preserve its nutritional value, especially the omega-3 fatty acids, which are sensitive to heat. This technique retains moisture, keeping the fish tender and flavourful.
  • Clean the fish and remove any bones. For small fishes like sardines, where manual bone removal may not be practical, grind and strain the fish after steaming.
  • Place the cleaned fish in a steamer basket or on a heatproof plate. Ensure the basket is positioned over boiling water, but not touching the water.
  • Cover with a lid and steam for 10-15 minutes on low to medium heat, or until the fish is fully cooked, turns to a solid white or lighter colour, and flakes easily.
  • Allow the fish to cool, then serve in small, bite-sized pieces or as a fine paste.

3) How to Grill Fish for Dogs
Grilling is a great method to cook fatty fish like mackerel and sardines. These fish naturally release oils during grilling, so it's important to avoid adding seasoning, oil, or spices.
  • Clean the fish and remove the bones. As with other methods, grind and strain small fish like sardines to remove any bones after cooking.
  • Grill the fish on a non-stick grill pan or use an oven with a broiling setting.
  • Cook the fish thoroughly, ensuring no raw, pink, or translucent areas remain.
  • Allow the fish to cool before serving it to your dog.

How to Store Fish for Your Dog, Safely & Hygienically

Properly storing fish is just as important as cooking it to ensure its safety and freshness. Here's how to safely store both raw and cooked fish:
1) Raw Fish
If you are not cooking it immediately, it's best to freeze raw fish rather than refrigerate it. While freezing may not eliminate bacterial contamination, it can help remove parasites like tapeworms and roundworms.
To ensure safety, make sure the fish stays at a consistent temperature. For optimal freshness and safety, it’s recommended to use the fish within 30 days. Freezing preserves the quality of the fish and reduces the risk of parasites until you are ready to cook and serve it to your dog.

2) Cooked Fish
After cooking fish, allow it to cool down to room temperature before storing it in an airtight container in the refrigerator. Cooked fish stored in the refrigerator should be consumed within 1-2 days. If you want to store fish for a longer period, freeze it in a freezer-safe container or bag, and label it with the date to track freshness. Frozen fish can be kept safely for up to 30-45 days.
fish fillets on ice
Proper storage = no fishy surprises!

Six Safety Considerations While Feeding Fish to Dogs

While fish can be a healthy addition to your dog’s diet, it is important to be mindful of potential risks. Here’s what you need to know:
  • Avoid Raw Fish: Feeding raw fish to dogs can be risky due to numerous potential health hazards such as parasites (tapeworms, roundworms and flukes), bacteria (Salmonella, Listeria or Vibrio), and the enzyme thiaminase, which can cause vitamin B1 deficiency. Certain raw fish, such as salmon, trout, and some freshwater varieties, can also transmit SPD (Salmon Poisoning Disease), a potentially fatal condition caused by a microorganism carried by parasites. Freezing raw fish may eliminate some parasites but doesn't protect against bacterial infections or SPD.
  • Be wary of bones: Fish bones, particularly from larger fish, can pose choking hazards or cause digestive injuries. Small fishes like sardines and anchovies have softer bones and are safer when properly ground or strained to remove sharp fragments.
  • Harmful fish to avoid: Farmed fish like tilapia may contain harmful chemicals, antibiotics, and contaminants. Opt for wild-caught, saltwater fishes like sardines and anchovies. Larger fishes such as tuna and king mackerel have higher mercury levels, which can be toxic over time. Limit or avoid these fish for your dog’s safety.
  • Fish for dogs with health conditions: Fish may not be suitable for all dogs, especially those with specific health conditions. Dogs with kidney disease should avoid phosphorus-rich fishes like salmon and sardines, while those with pancreatitis or lipid metabolism disorders should steer clear of fatty fishes like mackerel to prevent worsening their condition.
  • Feeding tips: Introduce fish gradually to monitor your dog’s tolerance and prevent digestive upset. Watch for signs of allergies, such as itching, vomiting, or diarrhoea.
  • Choking warning: If your dog shows signs of choking (gagging, coughing, pawing at the mouth, difficulty breathing, or sudden distress), seek immediate veterinary attention.
 
Fish can be a wonderful addition to your dog’s diet, packed with nutrients that support heart health, glowing skin, and strong joints. By selecting the right fish and preparing it safely, you can treat your dog to a meal that's both delicious and wholesome!
 
Happy Pet Parenting!
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