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

15 Grey Cat Breeds (With Info & Pictures)

You may be surprised by the number of cat breeds that come in grey (as well as the many that only come in...

How to Train Your Cat to Use a Cat Door: 6 Vet-Approved Tips

Whether you’re installing a cat door in your home for the first time or have just moved somewhere that already has one, it...

9 Best Cat Urine, Odor, & Stain Removers in the UK in 2025: Reviews & Top Picks

One of the few downsides of being a cat owner is dealing with cat urine, odors, and stains. Accidents happen, and when they...

My Cat’s Cyst Keeps Filling Up, What’s Wrong? (Vet Answer)

Over their lifetime, our cats can develop all sorts of weird and wonderful lumps, bumps, swellings, and more. One of the least worrying...

More related

Why Do Cats Spray? Our Vet Explains the Common Reasons & Solutions

Cats mark their territory to communicate their presence to other animals. If you find urine in places other than the litter box, you’ll...

My Cat Ate a Chicken Bone! Here’s What to Do (Vet Answer)

For most cats, a chicken bone is a temptation that’s hard to resist! Wild cats often consume their prey without removing the bones,...

How Rare Are Tuxedo Cats? Vet-Approved Coat Color Facts & Info

Tuxedo cats have a bicolor pattern, usually black and white. This gives off the appearance of the cat wearing a miniature tuxedo, and...

Persian Kittens For Sale in New Jersey: Breeders List 2025

Catster advocates for adopting before shopping. We understand there are many reasons for seeking a breeder, though, so we encourage it to be...

Keep reading

How Do You Give a Cat Lactulose? (7 Vet Approved Methods)

Lactulose is a stool softener often prescribed to ease feline constipation. The product pulls moisture into your pet’s feces, encouraging regularity by making bowel movements less dense. It’s also often prescribed for cats suffering from liver failure to reduce the...

feeding cat using syringe

7 Best Kitten Foods for Diarrhea in 2025 – Reviews & Top Picks

If you have a kitten with diarrhea, it can be a scary experience. Diarrhea can dehydrate your kitten and rob it of important nutrients it needs to grow into a healthy cat. In some cases, you can improve the situation...

American cat kittens eating

Are Cast Iron Plants Toxic To Cats? Vet-Reviewed Houseplants Examined

If you have a green thumb and a cat obsession, you know that your two great loves don’t always coexist seamlessly. Not all flowers and plants are safe for cats, so caution is required any time you add to your...

Catster_Are Cast Iron Plants Toxic to Cats

Rachael Ray Nutrish Cat Food Review of 2025: Recalls, Pros & Cons

Review Summary Chef Rachael Ray shifted her focus from creating cuisine in the kitchen to extending her passion to animals. After deciding that she wanted her beloved Pit Bull, Isaboo, to enjoy the same kind of delicious nutrition she cooked...

Rachael Ray Nutrish Cat Food Review

How to Tell if Your Cat Has Separation Anxiety: 8 Vet-Reviewed Signs to Look For

You may have heard about dogs having separation anxiety, but this condition can affect cats, too. If you’re wondering if cats can have separation anxiety, they can. While cats may seem more aloof than dogs and not appear to be...

man hugging a cat

Can Cats And Dogs Drink From the Same Water Bowl? Vet Approved Facts & Tips

If you live in a multi-pet household and own both a cat and a dog, you may be wondering if these animals can share their water bowl. If your cat and dog choose to drink out of the same water...

Can Cats And Dogs Drink From the Same Water Bowl

Are Cats Playful? Vet-Reviewed Feline Character Explained

Absolutely, most cats love to play! However, cats vary a lot in temperament depending on their breed, gender, and other factors. Some breeds are particularly known for being playful, like the Bombay, while others are known for not being playful....

Two cats are lying on the floor. Gray cats are playing with a laser pointer.

Is Pilea Toxic to Cats? Vet-Reviewed Houseplants Examined

When you think you’ve seen everything as a pet owner, your furry friend does something new to throw you for a loop. That’s what happens to cat owners every year when they notice their feline friends eating different plants in...

Catster_Is Pilea Toxic to Cats