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.

Nutrition

Vitamin B12 for Cats: 7 Vet-Approved Food Sources

By Elizabeth Gray · Reviewed & fact-checked by Dr. Lauren DemosVet Approved
Dr. Lauren Demos
Reviewed & Fact-Checked byDr. Lauren DemosDVM (Veterinarian)
As a veterinarian, Lauren is eager to share her experience in emergency medicine and cats, with our readers. She loves sharing helpful, real life tips for having cats as part of your life, and what to do in critical situations with your pets.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Read about our vets
Share
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

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

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

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

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

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.

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.

Sources

Featured Image Credit: Okssi, Shutterstock

The Catster Newsletter

Expert cat care, straight to your inbox

News, insights, and useful advice, delivered to you.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Elizabeth Gray
Authored by

Elizabeth Gray

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.

Can Cats Eat Steak? Vet-Verified Nutrition Facts & FAQ

Can Cats Eat Steak? Vet-Verified Nutrition Facts & FAQ

Your cat is probably one of the most finicky eaters you know. She will turn up her nose at even the most decadent cat food. This begs the question, “Can I feed…

Christian Adams
By Christian Adams ·
7 Natural Sources of Taurine for Your Cat: Vet-Reviewed List

7 Natural Sources of Taurine for Your Cat: Vet-Reviewed List

When it comes to feline diets, the importance of taurine cannot be overstated. An essential amino acid for cats, this nutrient is found almost exclusively in a…

Christian Adams
By Christian Adams ·
3 Food Sources of Thiamine for Cats (Vitamin B1): Vet Reviewed Options

3 Food Sources of Thiamine for Cats (Vitamin B1): Vet Reviewed Options

We all want our cats to be healthy, happy, and with us for as long as possible. That’s why we take them to the vet for checkups, feed them high-quality, protei…

Patricia Dickson
By Patricia Dickson ·
9 Human Foods That Cats Can Safely Eat: Vet-Reviewed Dishes

9 Human Foods That Cats Can Safely Eat: Vet-Reviewed Dishes

It's hard to resist the pleading eyes your cat gives you as you chow down on a succulent chicken breast or a juicy hamburger. So, you might wonder if you can s…

Christian Adams
By Christian Adams ·

Cats Are Obligate Carnivores: Vet-Approved Info & Feline Diet Facts

Cats are often called “obligate carnivores,” especially in reference to their diet. But what does this mean? In short, obligate carnivores are “true” carnivore…

Kristin Hitchcock
By Kristin Hitchcock ·
Cats Are Obligate Carnivores: Vet-Approved Info & Feline Diet Facts

What Do Cats Need in Their Diet? 6 Vet Verified Essential Nutrients

Cat owners want their beloved felines to live a long, happy life, and that long and happy life starts with nutrition. Cats are obligate carnivores, meaning the…

Rachel Giordano
By Rachel Giordano ·
What Do Cats Need in Their Diet? 6 Vet Verified Essential Nutrients

What Can Cats Eat Besides Cat Food? Vet-Verified Nutrition Guide

When it comes to being a responsible cat parent, there is no worse feeling than getting home from the grocery store and unpacking everything, only to find you…

Christian Adams
By Christian Adams ·
What Can Cats Eat Besides Cat Food? Vet-Verified Nutrition Guide

Can Cats Be Vegan? Vet-Reviewed Facts

People choose to be vegan for various reasons, including a desire to reduce their carbon footprint, a need to improve their health, and everything in between.…

Dean Eby
By Dean Eby ·
Can Cats Be Vegan? Vet-Reviewed Facts

8 Vet-Approved Food Sources of Magnesium for Cats

Magnesium has a huge role to play in the normal functioning of your cat's body, and a lot will start to go wrong without it. It's a mineral that should be pres…

Keri-Beth Clur
By Keri-Beth Clur ·
8 Vet-Approved Food Sources of Magnesium for Cats

Can Cats Eat Lamb? Vet-Reviewed Pros & Cons

One of the most important things about caring for your feline is ensuring that your furry friend gets proper and adequate nutrition through a well-balanced die…

Visnja Radosavljevic
By Visnja Radosavljevic ·
Can Cats Eat Lamb? Vet-Reviewed Pros & Cons

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 prot…

Christian Adams
By Christian Adams ·
Can Cats Eat Venison? Important Facts & Health Guidelines

Can Cats Eat Quail Eggs? Vet-Approved Nutritional Benefits & Facts

As obligate carnivores, it’s no wonder that cats absolutely love any product that comes from an animal, including dairy! Of course, that doesn't necessarily me…

Ashley Bates
By Ashley Bates ·
Can Cats Eat Quail Eggs? Vet-Approved Nutritional Benefits & Facts

Love Cats? So Do We! Join the Catster Community

Stay informed with expert cat care insights delivered straight to your inbox! Discover professional guidance on feline behavior, feeding tips, trusted product picks, and much more.

You may opt-out at any time. View our Privacy Policy for more information.

The Catster site on a phone