Cat Health

Can Cats Eat Miso? Is It Safe for Cats?

Wondering, "Can cats eat miso?" Discover the safety of miso for your feline friend and learn about the potential risks and benefits in this informative guide!
Dial A Vet
Updated
May 25, 2025
|
Published
May 25, 2025
A cat curiously sniffing a bowl of miso soup on a kitchen counter.

Video Call an Aussie Vet now for just $49 AUD

Dial A Vet is available in Australia, NZ, Canada, United States & Canada!
Speak to A Vet Now

As a cat parent, you may find yourself wondering about the safety of certain human foods for your feline friend. One such food is miso, a popular ingredient in many Asian dishes. While it might seem harmless, is it really safe for your cat? Let’s dive into the risks, symptoms, and expert advice to help you make the best decision for your furry companion.

🐾 What Is Miso?

Miso is a traditional Japanese seasoning made from fermented soybeans, salt, and a fungus called koji. It’s commonly used in soups, marinades, and sauces, and is known for its rich umami flavor. While it’s a healthy addition to human diets, it’s important to consider how its ingredients and nutritional profile might affect your cat.

🐟 Can Cats Eat Miso?

The short answer is no, cats should not eat miso. Although it’s not considered toxic, miso contains several ingredients that can be harmful to cats if consumed in significant quantities. Here’s why:

  • High sodium content – Miso is extremely salty, which can lead to sodium poisoning in cats.
  • Soybeans – While not toxic, soybeans can be difficult for cats to digest and may cause stomach upset.
  • Seasonings – Many miso-based dishes include garlic, onions, or other seasonings that are toxic to cats.

Even small amounts of miso can upset your cat’s sensitive stomach, so it’s best to avoid sharing it altogether.

🩺 Symptoms of Sodium Poisoning in Cats

If your cat accidentally ingests miso or another high-sodium food, it’s important to monitor them for signs of sodium poisoning. Symptoms to watch for include:

  • Vomiting
  • Diarrhea
  • Excessive thirst
  • Frequent urination
  • Lethargy
  • Tremors or seizures

Sodium poisoning can be life-threatening if left untreated. If your cat shows any of these symptoms, contact your veterinarian immediately.

😺 Why Is Sodium Dangerous for Cats?

Cats require a small amount of sodium in their diet to maintain normal cell function, but too much sodium can disrupt their body’s delicate balance. Excess sodium causes dehydration, electrolyte imbalances, and increased blood pressure. In severe cases, it can lead to kidney damage or neurological issues.

Because miso is so high in sodium, even a small amount can push your cat’s sodium levels into dangerous territory. This is especially true for kittens, senior cats, or cats with pre-existing health conditions.

🌿 What About Low-Sodium Miso?

You might wonder if low-sodium miso is a safer option for cats. While it does contain less salt, it’s still not recommended for feline consumption. Low-sodium miso often contains other ingredients that can upset your cat’s stomach, such as soy and seasonings. Additionally, cats have no nutritional need for miso or its components, so there’s no benefit to offering it as a treat.

🐾 Safe Alternatives to Miso for Cats

If you’re looking for a way to share a special treat with your cat, there are plenty of safe and healthy options. Consider these alternatives:

  • Plain cooked chicken or fish – Free of seasonings and safe for cats to eat.
  • Cat-safe broth – Low-sodium chicken or fish broth can be a tasty and hydrating treat.
  • Cat-specific treats – Choose commercially available treats formulated for feline nutrition.

Always introduce new foods slowly and in small quantities to avoid upsetting your cat’s stomach.

🐾 What to Do If Your Cat Eats Miso

If your cat accidentally consumes a small amount of miso, they will likely be fine, but it’s essential to monitor them closely for any signs of distress. If they exhibit symptoms such as vomiting, diarrhea, or lethargy, contact your veterinarian right away.

If your cat consumes a large quantity of miso or a miso-based dish, don’t wait for symptoms to appear. Call your vet or an emergency pet poison hotline for guidance. They may recommend bringing your cat in for treatment, which could include IV fluids to flush out excess sodium and rehydrate your pet.

FAQs

Can cats eat fermented foods like miso?

While some fermented foods are safe for cats, miso is not recommended due to its high sodium content and other potentially harmful ingredients.

Is soy harmful to cats?

Soy is not toxic to cats, but it can be difficult for them to digest and may cause stomach upset. It’s best to avoid soy-based foods like miso.

What are the symptoms of sodium poisoning in cats?

Symptoms include vomiting, diarrhea, excessive thirst, frequent urination, lethargy, and tremors or seizures. Contact your vet immediately if you notice these signs.

Can I give my cat low-sodium miso?

Even low-sodium miso is not safe for cats, as it still contains soy and other ingredients that can upset their stomachs.

What should I do if my cat eats miso?

Monitor them closely for symptoms of distress and contact your vet if they show signs of sodium poisoning or if they consumed a large amount.

References

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

While all efforts are made to ensure the accuracy of the information provided on this blog, including review by licensed veterinarians where applicable, this content is for informational purposes only and should not replace professional veterinary consultation.

Related Blogs

.link-5 { font-weight: 700 !important; }