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Home > Cats > Can Cats Eat Mussels? Vet-Approved Risks, Benefits, Alternatives, & FAQ

Can Cats Eat Mussels? Vet-Approved Risks, Benefits, Alternatives, & FAQ

Can Cats Eat Mussels

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Dr. Amanda Charles

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The information is current and up-to-date in accordance with the latest veterinarian research.

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Cats can be great fun, but feeding them a healthy diet is crucial for keeping them happy and healthy. They are carnivores that can eat a varied diet, so many might wonder if feeding them mussels is okay. The short answer is yes. Most cats can eat mussels as an occasional treat. Keep reading as we discuss how often they can eat them and the possible dangers that you should know about.


Feline Diet

a calico cat eating from metal bowl at home
Image By: Jaromir Chalabala, Shutterstock

Cats are carnivores that rely heavily on meat-based protein for sustenance. Animal-based proteins provide essential amino acids that the cat needs, along with animal proteins, fats, and minimal carbohydrates. This diet helps give them plenty of energy without causing weight gain.

The Nutritional Value of Mussels

Mussels are mollusks belonging to the bivalve family. They are well-known for their nutritional richness, offering an abundance of protein, omega-3 fatty acids, vitamins B12 and C, and essential minerals like iron, selenium, and manganese. All these ingredients can be quite beneficial to a cat.

Can Cats Eat Mussels?

While cats can safely consume certain types of seafood, you should approach mussels cautiously. In small amounts, plain cooked mussels may not pose an immediate threat to most cats. However, it’s essential to remember that mussels aren’t a natural part of a cat’s diet. They should only be fed as an occasional treat, your cat should be getting all their essential nutrients from a high quality balanced cat food.

Green shell mussels
Image By: Graphichead, Shutterstock


Potential Risks of Feeding Mussels to Cats

Adverse reactions

Some cats may suffer from intolerances or allergies to certain foods. These reactions can manifest as skin irritation, itching, or gastrointestinal issues like vomiting and diarrhea. Stop feeding mussels to your cat if you notice any of these signs.


Mussels are filter feeders, and their diet includes various microorganisms from their surrounding environment, including algae and bacteria. If mussels accumulate harmful toxins, such as paralytic shellfish toxins or heavy metals, it can pose severe health risks to cats when they eat them. Therefore, you shouldn’t feed your cat any mussels that you collect in the wild.


Mussels have shells that can be problematic for cats to digest. Consuming sharp shell fragments may lead to internal injuries or blockages that require medical attention.

Green Lipped Mussel
Image By: Mr.Samarn Plubkilang, Shutterstock


Potential Benefits of Feeding Mussels to Cats

Low Calorie

Mussels are a low-calorie protein that will help your cat reach their daily needs without contributing to weight gain.

Joint Health

Mussels contain both glycosaminoglycans and high levels of omega-3s. Studies on feeding Green lipped mussels have shown they have a positive effect on joint health.

Other nutrients

Mussels also contain other beneficial nutrients such as vitamins C and B12, iron, zinc and selenium. The omega-3s can also help with skin and coat health as well as helping support the immune system.

Feeding Mussels to Cats

Consult Your Veterinarian

Before introducing any new food item to your cat, seek advice from your veterinarian. They can assess your cat’s individual health needs and provide personalized recommendations.

Serve Them Cooked and Plain

Before giving them to your cat, cook the mussels without any seasoning, garlic, onions, or other potentially harmful ingredients, and allow them to cool.

Remove the Shells

Always remove the shells before feeding mussels to your cat, to minimize the risk of choking or internal injuries.

mussels without shells on a wooden board
Image Credit: Vlad Karavaev, Shutterstock

Safer Alternatives

High-Quality Cat Food

Stick to commercially available high-quality cat food to meet your cat’s nutritional requirements. Choose a brand with real meat like chicken, turkey, or salmon listed as the first ingredient, and avoid brands that use artificial colors and preservatives.

Cat-Safe Proteins

Choose lean proteins like cooked chicken, turkey, or white fish as treats. These items should be free of bones and seasoning.

Commercial Cat Treats

If you are looking for healthy treats for your cat, commercial treats can be both healthy and safe if you limit them to less than 10% of their total caloric intake.


Frequently Asked Questions

Can Cats Eat Mussels Safely?

Cats can eat mussels in small amounts. However, they are not a natural part of a cat’s diet, and some cats may experience adverse effects such as digestive issues after eating them.

What Should I Do If My Cat Shows Signs of an Allergic Reaction After Eating Mussels?

If your cat exhibits signs of an allergic reaction, such as skin irritation, itching, vomiting, or diarrhea, discontinue feeding mussels immediately and consult your veterinarian.

Can I Feed Raw Mussels to My Cat?

Do not feed raw mussels to cats due to the risk of bacterial contamination and potential toxins in uncooked seafood.

close up of mussels without shells
Image Credit: Valerii__Dex, Shutterstock

Can I Feed My Cat Canned Mussels From the Grocery Store?

Avoid canned mussels because they may contain added salts or preservatives that could be harmful. Stick to plain cooked mussels if you feed them to your pet.

Are There Any Health Benefits of Feeding Mussels to Cats?

Mussels do contain valuable nutrients, such as protein, omega-3 fatty acids, vitamins, and minerals, but cats can obtain these from their regular diet without the risks associated with mussels, so you should provide them only as occasional treats. There are also joint health supplements and diets available that contain green lipped mussel extract. Speak to your veterinarian before adding supplements to your cat’s diet to make sure they are suitable for your pet.

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If you introduce them slowly and observe your cat afterward, your cat can occasionally consume mussels if you have had the go ahead from your vet. These mollusks contain beneficial nutrients such as omega 3 fatty acids, that can help with joint and skin health. However, they can also collect toxins due to how they feed, so it’s best to source them from a reputable provider and avoid feeding wild-caught mussels to your cat. The shells can also be dangerous, so removing them before serving is important. Always cook them well, and serve them without any seasonings or spices.

Featured Image Credit: Anirut Krisanakul, Shutterstock

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