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How Long Will Cat Have Diarrhea After Changing Food?

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How Long Will Cat Have Diarrhea After Changing Food

In this article, we have discussed how long will cat have diarrhea after changing food, how to change the cat’s diet, and how to prevent cat diarrhea.

In the pet shop, I saw a range of good cat food products. It was cheap plus healthy. This intrigued me, and I bought one for my kitty. But, most of the time, when I get new cat food for my kitty, she starts having diarrhea issues.

If you have also faced this, it is important to know how long will cat have diarrhea after changing food. Switching cat food too quickly is not safe.

You can read this article and solve your feline friends’ problem now.

Anthony Brooks-DVM


Dr. Anthony Brooks

DVM, Veterinarian

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The information is current and up-to-date in accordance with the latest veterinarian research.
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How Long Will Cat Have Diarrhea After Changing Food?

If you have changed your cat’s food, your cat may have diarrhea for one to four days!

Most of the time change in the diet of your cat can give her side effects like diarrhea. This happens because she eats the same type of food every time, and her stomach becomes sensitive and used to it.

As per Whiskas, “Cats’ stomachs can be sensitive to certain types of food, and some ingredients may not agree with them.[1]

A few times, a cat can have vomiting and diarrhea if some toxins foreign body and worms enter her intestine by mistake. Or they consume cow’s milk.

If you have changed her meal and even after 5-6 days you still see your cat is facing a diarrhea problem, then it is important that you visit a veterinarian immediately. He will tell you what is wrong with her diet and what things you can consider preventing diarrhea in cats.

How Can You Safely Change Your Cat’s Food?

The rule is to keep the transition pace slow.

When you change your cat’s food, the transition should be slow. You can not suddenly change your cat’s food. The most common changing cat food symptoms are diarrhea and vomit.

How Can You Safely Change Your Cat’s Food

So, we will tell you how can you safely change your cat’s diet in this piece!

Starting from the start, when you get new cat food, make sure you keep the ratio of new food less and old food extra. Day by day, gradually increase the portion of new food and decrease the portion of the old food.

By doing so, your feline will get used to new food completely in a few weeks. Well, it may vary from kitten to kitten and cats to cats. Few cats may adapt to this change in a week, and a few may take two to three weeks. So, it is important that you must have a bag full of patience and don’t rush your cat.

Give your cat plenty of fresh water to drink if she has stomach aches in the initial period. If your cat smells the new food and avoids eating it, then it is important that you consider changing your choice of a cat food product.

When a cat’s diet changes, she is likely to have underlying health issues. So, it is important that you must know these.[2]

  • Lethargy
  • Loss of appetite
  • Upset Stomach
  • Stops drinking water
  • Watery diarrhea
  • Diarrhea with blood in it

What Food and Supplements Can Prevent Diarrhea in Cats?

Make the right change in her diet and add the things listed below to prevent diarrhea in cats.

What Food and Supplements Can Prevent Diarrhea in Cats

Try Yogurt for Cats With Diarrhea

Try Yogurt for Cats With Diarrhea

It is safe for cats to give yogurt! But make sure you check it doesn’t have a harmful element like xylitol.

Yogurt can help to boost the immunity system of cats and can prevent diarrhea. You can feed her one to two tbsp of yogurt in three to four weeks. They will gain essential nutrients from this.

Increase Water Intake

Increase Water Intake

A cat suffering from diarrhea is likely to suffer from dehydration. Therefore, you should give her enough water to drink. You can also provide her beef broth and wet chicken food too.

You should avoid giving her kibble during this time, but if you want to give her kibble, make sure to mix warm water before giving it to her. Kibble will soak the water, and it will be easy for her to digest. Plus, the water in it will keep her hydrated too!

Try Best Cat Food

Change your feline’s food with Blue Buffalo Sensitive Stomach Dry Cat Food. This pet food brand doesn’t contain any by-products, plus it has chicken as the first ingredient. It is great for adult cats with sensitive stomach issues. Full of probiotics which make it easy to digest. The chances of food allergies and cat vomiting with this cat food are negligible.

Use Solid Gold Grain-Free Cat food when your cat has diarrhea because it has a nice amount of fibers and probiotics, which helps reduce diarrhea. It contains real meat, which makes it best for providing optimal nutrients. It has no by-products and offers 100% satisfaction to your cat.

If nothing works and your cat still faces health risks, then you should consult a vet.

Summing It All Up!

How long will cat have diarrhea after changing food, can switching cat food cause diarrhea?

All your doubts will be dispelled in this article!

Generally, if you have changed your cat’s diet to a new food item, it takes 3-4 days to get used to it and stop diarrhea. But if it doesn’t then, you can use more fibers, probiotics, and yogurt to her diet.

Even after switching and making changes your cat is still stressed and faces issues, then you should visit the veterinarian for the best of the cat’s health.


  1. Can changing cat food cause diarrhoea? (n.d.). Whiskas. Retrieved September 5, 2022
  2. Diarrhea in cats. (n.d.). Maddies Fund. Retrieved September 5, 2022
  3. The scoop on cat poop. (n.d.). Medicine Net. Retrieved September 5, 2022

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