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.

Vitamin B12 for Cats: 7 Vet-Approved Food Sources

cat eating food in the bowl

Vitamin B12, or cobalamin, is an essential nutrient for cats, having a vital role in multiple key body functions and processes. Cats cannot produce B12 and must get it from their food instead. Keep reading to learn about great food sources of vitamin B12 for cats. We also let you know the signs that your cat isn’t getting enough of this vitamin and what to do about it.

divider cat paws oct 2024

The 7 Food Sources of Vitamin B12 for Cats

1. Organ Meats

cooked beef liver
Image Credit: nadi555, Shutterstock

The liver and kidneys are two organ types of meat that are great food sources of vitamin B12 for cats. Organ meats are considered more nutritious than muscle meat overall, and wild cat species routinely eat these parts of their prey. Beef, lamb, and veal liver and kidneys are the highest in B12.  Try to buy organic or cleanly raised organ meat because toxins can build up in the liver and kidneys due to their function in the body. Also, only serve cooked liver and kidneys.


2. Clams

clam in its own juice
Image By: BearFotos, Shutterstock

Cooked or canned clams are another great food source of vitamin B12 for cats. They’re also high in protein, iron, and antioxidants. While you should never offer raw clams to your cat, avoid feeding them shellfish fried or seasoned with salt, spices, or onions and garlic. If your cat won’t eat clams, clam broth or juice is also high in B12. It’s also an excellent way to increase your cat’s liquid intake if they aren’t drinking enough water.


3. Sardines

boiled sardines on a white plate
Image By: syogo tatetsu, Shutterstock

In addition to being a great food source of Vitamin B12 for cats, sardines are high in fatty acids and are just an overall nutritious fish. It’s easy to feed sardines to your cat because they’re available canned. Sardines packed in oil can be high in fat and should be fed with caution or avoided entirely.

Look for sardines packed in water instead. If you want to offer fresh sardines, make sure you cook them thoroughly first. Raw fish should never be fed to cats because it may contain dangerous bacteria. It also has a compound that destroys another B vitamin, thiamine. Thiamine deficiency can cause dangerous neurologic problems.


4. Beef

roasted beef
Image Credit: Shutterbug75, Pixabay

Cats are true carnivores, meaning they can only process nutrients from animal food sources. Cooked, lean meats are among the best human food snacks you can give them. If you’re looking for a great meat food source of vitamin B12, beef is an excellent option. Lean cuts of beef are highest in B12, anyway, and the healthiest choice for your cat. Beef also contains several other B vitamins and other vital nutrients like zinc. To maintain the levels of B12 through the cooking process, try grilling or roasting the beef without using oils or spices.


5. Salmon

Half raw salmon fillet on the table
Image Credit: TheFarAwayKingdom, Shutterstock

As a common fish protein source in commercial cat food, salmon is a great source of vitamin B12 for your kitty. It is generally considered low in mercury, which is safer for your cat to eat. This fish is also a good source of protein and omega-3 fatty acids. Offer salmon to your cat in moderation because they may love it so much that they try to avoid eating their actual diet.


6. Eggs

hard boiled eggs
Image Credit: bluedog studio, Shutterstock

Cooked eggs are another excellent source of vitamin B12 for cats. Eggs are high in protein and contain vitamin D and vitamin B2. The yolk contains more B12 than the egg white, so offer your cat the entire egg for full nutritional benefits. Raw eggs may contain dangerous bacteria and should not be offered. Even if your cat doesn’t get sick from bacteria like Salmonella, they can be carriers and pass it to vulnerable humans, such as kids or the elderly.


7. A Balanced Cat Food

cat food in red bowl
Image Credit: Africa Studio, Shutterstock

The simplest food source of vitamin B12 for your cat is a balanced, commercially prepared cat food. In the United States, all cat food must meet basic minimum nutrition standards, including adequate levels of B12. That includes premium and grocery-store brands.

Homemade cat diets are not automatically balanced, even if they include some foods high in B12 that we already listed. If you want to cook for your cat, ask a veterinarian to help you formulate meal recipes that contain all the nutrients your cat needs, including B12.

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

divider cat paws oct 2024

Signs Your Cat Isn’t Getting Enough Vitamin B12

While cat diets contain enough vitamin B12 for a healthy cat, there are times when eating this nutrient just isn’t enough.

Common signs that your cat is low in vitamin B12 can include:

  • Weight loss
  • Lethargy
  • Vomiting
  • Diarrhea

Interestingly, the most common cause of vitamin B12 deficiency is an intestinal disease that impacts the cat’s ability to absorb nutrients from their food.

If you notice these signs, have your cat seen by a veterinarian. There is a blood test that can check your cat’s B12 levels. If your cat does have low levels, your vet may suggest supplementing your cat’s normal B12 intake from their diet.

divider cat paws oct 2024

Conclusion

Before feeding your cat any new food, even one on this list that provides vital nutrients like B12, check with your veterinarian. Safe, non-toxic foods could still upset your cat’s stomach, so start by offering a small amount and monitoring your cat’s reaction. Ensure that most of your cat’s daily calories come from a balanced diet to receive all the nutrition they need, not just vitamin B12.


Featured Image Credit: Okssi, Shutterstock

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

Moving With an Outdoor Cat: 12 Vet-Approved Tips to Consider

Moving is always chaotic, and it’s just as stressful for your pets as it is for you. While an indoor cat is used...

Catster Photo Contest: Cats of the Week Winners (December 19, 2024)

This Week’s Winner Silliest Cutest Most Dignified Most Expressive Best Action Shot Sleepiest Enter Your Cat Submit your kitty for a chance to...

Lady Rapper Kreayshawn Tells Us All About Her Adopted Kitties

Kreayshawn came to stardom when her rap song “Gucci Gucci” went viral back in 2011 and clocked up something like a gazillion glittering...

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...

More related

How Did My Indoor Cat Get Fleas? 7 Possible Reasons (Vet Verified)

You might think that your indoor cat would be safe from a flea infestation, but sadly, that’s not always the case. The bad...

9 Common Cat Parasites: Our Vet Explains Facts, Signs & Treatments

Have you seen some worms crawling in your cat’s stool, or do you want to know what your veterinarian checks for when they...

How to Stop a Cat From Scratching Themself: Vet-Approved Causes & Solutions

All cats scratch themselves at one time or another throughout their lives, and scratching is a natural response to irritants. Scratching should not...

Crystal Cat Litter: Vet-Verified Overview, Pros, Cons & Alternatives

Cleaning the litter box is arguably the worst part of owning a cat. It’s stinky, messy, and just a dirty job that no...

Keep reading

My Cat Is Pulling Hair Out Along Their Spine: 8 Causes & Treatments

Do you see little clumps of fur around your home? Is your cat mysteriously developing bald spots along their spine and perhaps other places like their legs and tail? These are all signs that something is wrong, and you should...

cat walking on wooden floor

Why Does My Cat Groom Me? 9 Vet Reviewed Reasons

Felines spend a big part of each day grooming themselves—about 30–50%, in fact. So, it shouldn’t be surprising that our pets sometimes decide to groom us if we’re nearby. But why exactly do cats groom us? Is it simply because...

cat licking the nose of the woman

Can Cats Eat Licorice Root? Vet Approved Nutrition Advice

As a pet parent, you want everything to be perfect for your feline pal, which includes ensuring there are no plants, herbs, spices, or food that your cat can get into that might hurt them. Many pet parents wonder if...

Can Cats Eat Licorice Root

Can Cats Eat Venison? Important Facts & Health Guidelines 

The word “venison” (from the Latin verb venari, meaning “to hunt”) refers to meat from large game animals, most commonly deer. Though not the most typical protein in commercial cat foods, venison is used in some food formulas. Home-prepared venison...

Can Cats Eat Venison

10 Types of Veterinary Specialists & What They Do: Vet Approved Guide

Many cat parents may think their local veterinarian is the only option for their cat’s well-being and health, but this is not the case. Veterinary medicine and pet care operate in a similar way to human medicine. There is primary...

cat owner talking to the vet while examining the cat

10 Flea and Tick Diseases in Cats: Vet-Verified Facts & FAQ

Living with cats means you will, at some point, have to deal with fleas and potentially ticks. Although we often talk about them in the same breath, they are quite different. Fleas are smaller and have six legs while ticks...

domestic-cat-with-skin-desease

How to Tell if My Cat Has Worms? 5 Vet-Reviewed Signs

Parasitic worms are repulsive to think about, but they’re a common health problem for cats. Along with being off-putting, worms can cause severe complications for your cat if left untreated. Fortunately, worms can be treated safely and effectively in cats,...

cat owner belly rubbing her cat

Can Cats Eat Animal Crackers? Vet Reviewed Facts

Picture the scene: You’ve stolen a few minutes to enjoy some animal crackers, and your cat comes over, settles at your feet, and gives you the “eyes” or a swipe at your hand if you’ve got a feisty feline. We...

Can Cats Eat Animal Crackers