Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Cats Eat Mussels? Vet-Verified Nutritional Facts & FAQ

Can Cats Eat Mussels

Slimy—yet satisfying. If you grew up eating seafood, you’re probably familiar with mussels. These shellfish are full of health benefits for humans, but don’t be afraid to share. Your cat would probably enjoy a little bit of your mussels too, and they make an unusual and healthy treat for most cats.

divider 3 paws

What Are Mussels Anyway?

Mussels are a type of shellfish, just like clams and oysters. There are many different types of mussels, with saltwater and freshwater species living all over the world. They’re generally served cooked in a flavorful broth. Mussels make a great meal because they are a high-protein, nutrient-packed meat that could make a great change of pace from your cat’s regular food. Many cats enjoy eating mussels from the shell—this gives them a chance to explore and play with their food, making them happier and healthier, although you need to monitor them to ensure they are not eating the shells.

cooked mussels
Image Credit: enow, Pixabay

What to Look for in a Meat Source

Cats need meat-based meals to be healthy and survive, but there’s a lot of meat out there! Cat foods are made with all kinds of meat, from red meat to poultry to seafood. In general, cats need to get enough protein and fat from their food, but not too much, or you run the risk of obesity. Cats are healthiest when eating meals that are at least 26% protein and at least 9% fat. They also need to get a variety of vitamins and minerals in their food.

How Do Mussels Measure Up?

Mussels are a protein-packed, low-fat food source. They are around 23% protein and 3.5% fat. Both of those numbers include water weight, so their dry matter basis would be higher. Because they are much higher in protein than they are in fat, mussels are a great option for adding extra protein into your cat’s diet without adding too much fat.

Mussels also have many other nutrients that are important for your cat’s health. They are rich in omega-3 fatty acids. In the form of EPA and DHA, which are beneficial for the cat’s overall health as they have anti-inflammatory properties and are particularly beneficial for their heart, brain, joints, and coat. Mussels are also a source of iron and vitamin B12, both essential nutrients that help your cat’s red blood cell production, helping them remain healthy.

Another important nutrient in mussels is vitamin A. Vitamin A is vital for healthy skin and fur in your cat, among other things. In the wild, cats get vitamin A from the livers of their prey. Mussels also contain small amounts of many other vitamins and minerals that are healthy for your pet.

Just like in the case of other seafood items, mercury might be a concern, and while some species of mussels have lower mercury levels it largely depends on the pollution levels of the area where they grow. Reports and studies show variable results so caution must be taken when feeding mussels to cats. While there is no official regulation for mercury levels in pet food, experimental studies suggested that a limit of 70 ng/gr is an acceptable level, and 100 ng/gr of food is a level of concern for cats. It is always better to ask a veterinarian before you add any supplements to your cat’s diet.

Need veterinary advice but can't get to the clinic? Catster recommends PangoVet, our online veterinary service. Talk to a vet online and get the answers and advice you need for your cat without having to leave your living room — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

How Often Can I Feed My Cat Mussels?

Mussels are a great food source for cats, but that doesn’t mean that they should be the only food source. They aren’t likely to have every nutrient your cat needs, and they are too low in fat to be healthy as a primary source of fat. You can feed your cat mussels to supplement your cat’s food regularly, though. Adding mussels to your cat’s diet two or three times a week is sufficient.

When you feed your cat mussels, avoid overfeeding. Give your cat a few pieces of meat at a time. Consider feeding your cat a little less of their normal food to make up for it, especially if your cat is overweight.

Green-lipped mussels from New Zealand have been gaining popularity in recent years and this is because they are a source of chondroitin, and omega-3 fatty acids in the form of EPA and DHA, which makes them a great supplement for pets with inflammatory joint conditions.

cat carrying a mussel on its mouth
Image Credit: gesango16, Shutterstock

Risks and Precautions

Even though mussels are overall a healthy food for your cat, that doesn’t make them perfect. One of the biggest risks in eating mussels is shellfish allergy. Watch for signs of allergies in your cat, such as vomiting, diarrhea, swelling, hives, or signs of pain. If your cat shows signs of allergy, you should remove mussels from your cat’s diet.

You should also make sure mussels are clean and fully cooked. Mussels can carry bacteria and diseases that might be harmful to cats. Observe proper food handling precautions when working with mussels, just like you would for any other kind of meat. Keep meat refrigerated and freeze whatever won’t be eaten in a few days. Don’t feed your cat more than he will eat in one sitting or leave the meat in his bowl. Don’t mix raw and cooked meat.

divider 2 cats

Last Thoughts

As you can see, there are many great reasons to feed your cat mussels! They make a healthy addition to your cat’s regular food, and they are a great way to bring in some nutrients your cat might be missing out on.

Related Reads: 


Featured Image Credit: mp1746, Pixabay

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

My Cat Ate Onion! Our Vet Explains What to Do

You might have wondered if cats can eat onions or if they would want to, and although cats are less inclined to scavenge...

100 Candy Inspired Names For Cats: Our Favorites & More

Bringing home a new cat can be exciting, and there is so much more to look forward to than cuddles and companionship. You...

9 Best Cat Litters for Picky Cats in 2025 – Reviews & Top Picks

Did your cat stick their paw into the latest litter and scoff in disapproval? Or maybe you bought a new litter on sale...

What Are the Acro-Cats? Facts, History & FAQ

Animal lovers on a mission are always looking for ways to get our attention. If you have recently heard of the Acro-Cats, but...

More related

Is Baby Powder Safe for a Cat? What You Need to Know! Vet-Approved Safety Info

It has been common practice for groomers and cat owners to dust cats with baby powder, as it can leave the fur soft...

Desert Lynx Cat: Breed Info, Temperament, Pictures & Traits

If you aren’t familiar with the Desert Lynx cat, you aren’t alone! This is a rarer cat breed—a hybrid of several breeds created...

Is Peperomia Toxic to Cats? Vet-Reviewed Houseplants Examined

Cats are absolute fiends when it comes to plants. After spending good money on a plant, we always find a nibble on a...

Cat Paw Pads: Vet-Verified Anatomy & Functions Explained (With Diagram)

While we know a lot about cats, some of their physiology and behavior remain astounding. We marvel at their excellent hunting ability and...

Keep reading

Why Do Cats Have a Henry’s Pocket? What Is It For? Vet-Verified Info

Henry’s Pocket is the little flap of flesh you see on the outer part of a cat’s ear. Cats’ outer ears resemble triangles and are called pinnae. On the outside of the pinna, there’s a small pocket close to the...

close up cat ears pinna

8 Best Cat Foods With Taurine (2025) – Reviews & Top Picks

When it comes to selecting the best cat food for your precious feline, it can seem like there are way too many options to choose from. While most of us know that a high protein diet is important for our...

tabby cat eating from a bowl outside

My Cat Keeps Walking Away From Her Kittens, Is It Normal? Vet-Approved Reasons & Facts

Kittens are challenging for queens and their owners. When they’re small, kittens are vulnerable to many dangers, such as not eating enough, getting too cold, and getting sick, so it’s common for us to worry about them! Newborn kittens are...

American shorthair cat kitten sitting

Shedmonster Cat De-Shedding Tool Review 2025 – Pros, Cons, & Verdict

Review Summary Oster is among the most recognizable names in pet care and produces grooming products built around ease of use and durable design. Its dependability shines in its aptly named ShedMonster, an affordable yet effective tool for effortless fur...

Shedmonster Cat De-Shedding Tool Review

Why Do Cats Sometimes Eat Their Placenta? Vet Approved Facts & FAQ

Cats evolved to eat their placenta. It is normal behavior that most females will exhibit while giving birth. But that does not mean that all cats will eat every placenta. Both behaviors are normal and nothing to be worried about....

mother cat giving birth to a child

What Do Feral Cats Eat in The Wild? Vet Reviewed Facts & FAQ

Feral cats aren’t domesticated, prefer living outdoors, and often avoid human contact. They are normally considered mesopredators in their ecosystems and are most active after dusk. In addition, since they reproduce rapidly and are skilled hunters, conservationists find them devastating...

cat hunting a rat

Should You Let Your Cat Outside? Pros & Cons of Indoor & Outdoor Cats

To let or not to let your cat outside—that is the question. For some cat parents, this is never a quandary, as their feline companions already spend most of their time outside, and getting them used to living cloistered in...

short-haired domestic cat sitting outside in fenced

Nutrition For Kittens: Complete Vet-Approved Guide, Science, Health Tips & FAQ

Kittens are some of the most adorable creatures on earth, and if you’ve recently adopted one, congratulations, and get ready for the time of your life! Now that your new buddy has arrived, you may be looking for tips to...

kitten eating