Dogs and cats don’t need carbohydrates to stay healthy, but many can benefit from occasional fiber in their diet. Adding fiber is a simple and fast way to help pets with stool problems and improve gut health. For pets eating a species-appropriate diet, fiber may not be needed every day, but it can help keep things regular, especially for older pets or those with digestive issues. There are two main types of fiber for pets: soluble and insoluble.
Soluble fiber
Soluble fiber mixes with water and forms a gel-like substance. In the body, this helps bulk up stool and encourages regular bowel movements. It can also help with constipation by softening stool, making it easier to pass. Soluble fiber acts as a prebiotic and feeds the good bacteria in the gut.
For people, soluble fiber can help control blood sugar by slowing digestion and lower cholesterol by blocking its absorption, which supports heart health. While our pets need less plant matter than we do, some of these benefits still apply. Soluble fiber can help pets feel full and keep their digestion regular, improving their gut’s overall health.
Some safe foods to add to your dog’s bowl that are rich in soluble fiber are cooked oatmeal, apples, psyllium husk, pumpkin, and blueberries.
A note for cat owners
Excess fiber pulls water from the intestines. If your cat doesn’t eat wet food often, adding too much fiber without extra water can be risky and cause blockages. Cats usually don’t drink enough on their own, so use caution when adding fiber regularly and contact your vet for guidance if you need help with dosage. The safest options are plain pumpkin or psyllium husk, given in the right amount for your cat’s weight to support gut health.
Insoluble fiber
Insoluble fiber does not dissolve in water and passes through the digestive system mostly unchanged. It acts as a natural cleaner for the gut and can lower the risk of bowel diseases and blockages. Insoluble fiber also helps food move through the body faster, adds bulk to stool, and relieves constipation.
Like soluble fiber, insoluble fiber can slow the absorption of sugars. This can help pets who are overweight or have trouble feeling full. Foods high in insoluble fiber for dogs include brown rice, quinoa, sorghum, oatmeal, apples, pumpkin, and sweet potatoes.
considerations
Many foods contain both soluble and insoluble fiber, which support gut health and overall wellness. Most of these foods are safe to add to your dog’s bowl regularly, but always introduce new foods slowly to avoid upset tummies.
If your pet has recently had surgery or is on weight management food, a bland diet, or a prescription diet, do not add extra fiber without your vet’s advice.
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