What Is A Good Source of Fiber For Dogs?

Fiber is an important part of a dog’s diet and plays a role in digestion, stool quality, and overall gut wellness. While dogs don’t need high amounts of fiber, adding the right sources in moderation can help support digestive health, especially in dogs with irregular stools or sensitive stomachs.

Let’s explore why fiber matters for dogs, and review eight fiber-rich foods and supplements, including PetLabCo.’s Pumpkin Fiber Blend, that may help support your dog’s digestive health as part of a healthy, balanced diet and holistic approach to wellbeing.

Why Dogs Need Fiber

Fiber is a type of carbohydrate that resists digestion in the small intestine and instead ferments in the large intestine. This process can help:

• Regulate stool quality
• Support gut motility
• Nourish beneficial bacteria in the gut
• Support normal bowel function

Fiber types are often classified as:

• Soluble fiber – dissolves in water and forms a gel (may help regulate stool)
• Insoluble fiber – adds bulk and helps move waste through the gut

For most dogs, a mix of both can be beneficial, especially when added in moderation alongside a complete and balanced diet.

What Happens If My Dog Doesn’t Get Enough Fiber?

Just like in humans, fiber plays a role in your dog’s digestive comfort and stool consistency. While dogs don’t require large amounts of fiber, not getting enough may contribute to occasional digestive irregularities such as:

• Loose or inconsistent stools
• Difficulty passing stools
• Increased gas or straining during bowel movements

In some dogs, a low-fiber diet may also affect the gut microbiome, which can impact overall digestive wellness. Fiber helps nourish beneficial gut bacteria and supports healthy motility, especially in dogs with sensitive digestion.

If your dog is experiencing inconsistent stool quality or occasional signs of digestive discomfort, talk to your veterinarian. They can help rule out any underlying issues and may recommend gentle fiber sources to support stool regularity.

8 Foods and Supplements that are Good Sources of Fiber for Dogs

Here are eight common fiber sources that may support digestive health in dogs when used appropriately – like all extras, fiber-rich additional food sources should make up no more than 10% of your dog’s daily calorie intake:

1. Pumpkin

Pumpkin is rich in both soluble and insoluble fiber, making it a balanced, gentle option. 

How to give it: You can feed your dog a small amount of raw or cooked pumpkin (seeds and skin removed, no seasonings), or opt for a vet-reviewed supplement like PetLabCo.’s Pumpkin Fiber Blend, which can be a beneficial part of a wellness routine, and is very easy to give with your dog’s daily meal.

2. Sweet Potatoes

Sweet potatoes are a naturally fiber-rich, dog-suitable food. They contain both soluble and insoluble fiber, plus beneficial vitamins and minerals. Cooked, unseasoned sweet potatoes can be offered as a small topper on meals to gently support digestive regularity.

How to give it: Wash, peel (optional), and fully cook the sweet potato (bake, steam, or boil with no seasoning). Let it cool and offer it mashed or in small bite-sized cubes. Start with a few tablespoons, depending on your dog’s size.

3. Carrots

Raw or lightly steamed carrots provide fiber, crunch, and nutrients – avoid seasoning or oil. Carrots are especially helpful for dogs that enjoy chewing, and can contribute to both digestion and oral engagement. Frozen carrot sticks can also be soothing for teething puppies.

How to give it: Offer raw carrots in thin slices or matchsticks as a treat, or steam lightly for easier digestion in sensitive dogs. You can also finely grate carrots and mix them into meals. 

4. Apples (No Seeds or Core)

Apples offer fiber and natural sweetness. The skin contains insoluble fiber, while the flesh provides soluble fiber. Always remove the core and seeds before offering to your dog. 

How to give it: Wash thoroughly, remove the core and all seeds, and offer thin slices or small chopped pieces. Serve raw and unseasoned, or grate and mix into food. Limit quantity due to natural sugar content.

5. Green Beans

Green beans are low in calories and contain moderate fiber content. They’re often recommended by vets for dogs who need a nutritious, low-calorie food to help support digestion and satiety.

How to give it: Offer steamed or lightly boiled green beans with no seasoning. Chop into small pieces to prevent choking, especially for small breeds. You can also serve them raw if your dog tolerates them well.

6. Oats

Plain, cooked oats are a gentle source of soluble fiber that can help soothe the digestive system. Avoid oatmeal products with added sugar or flavorings.

How to give it: Use plain, unsweetened rolled oats (not instant or flavored). Cook in water (no milk or butter), let cool completely, and mix 1–2 tablespoons into your dog’s food. Start with small amounts to monitor tolerance.

7. Flaxseed

Flaxseed is a good plant-based source of omega-3 fatty acids and dietary fiber. Ground flaxseed can be found in some dog supplements and may support both digestion and skin health.

How to give it: Use ground flaxseed (not whole seeds) for better digestion. Sprinkle a small amount (¼ to ½ teaspoon for small dogs, up to 1 tsp for large dogs) over your dog’s food. You can also find it included in vet-reviewed supplement blends.

8. Daily Fiber Supplements

Some pet parents choose a fiber supplement designed for dogs. These often include prebiotic fibers (like inulin), psyllium husk, or pumpkin powder to help support stool consistency and gut health. Always choose vet-reviewed products and follow label directions carefully.

How to give it: Follow the dosage on the label based on your dog’s weight. Supplements may come as powders (mixed into food), soft chews (given as daily rewards), or capsules (served whole or opened and sprinkled). Always introduce gradually and consult your vet for long-term use.

PetLabCo.’s Pumpkin Fiber Blend: A Gentle Daily Digestive Support Option

PetLabCo.’s Pumpkin Fiber Blend is a vet-reviewed, powdered digestive feed supplement formulated to support stool quality, gut health, and overall digestive comfort in dogs. It contains a thoughtful blend of pumpkin powder, psyllium husk, a tri-mushroom blend and apple powder, each included to provide gentle, fiber-rich support for dogs with sensitive stomachs or occasional digestive irregularities.

How to give it: This easy-to-serve fiber blend powder can be mixed into your dog’s regular meals once daily, based on weight. It’s designed for daily use and offers a palatable, non-invasive way to support digestive wellness without artificial flavorings or sweeteners.

Because it includes both soluble and insoluble fiber, PetLabCo.’s Pumpkin Fiber Blend may help maintain stool consistency and nourish beneficial gut bacteria, making it a great everyday option for pet parents looking to proactively support their dog’s digestive health.

Always follow the feeding instructions on the label and consult your vet before introducing any new supplement to your dog’s routine, especially if they have a history of gastrointestinal sensitivity.

Tips for Introducing Good Sources of Additional Fiber to Your Dog’s Diet

• Start slowly: Too much fiber too fast can cause temporary gas or soft stools.
• Watch your dog’s response: Every dog is different; adjust based on their digestion and your vet’s advice.
• Check labels: When using supplements, look for well-formulated products with clear instructions and appropriate dosing by weight.
• Consult your vet: Especially for dogs with ongoing digestive issues, chronic loose stools, or underlying conditions.

Frequently Asked Questions: Fiber for Dogs

Q: What is a good daily source of fiber for dogs?
Sweet potato, green beans, and pumpkin are healthy and balanced daily options. Pumpkin is a very popular choice – it’s rich in both soluble and insoluble fiber and often included in vet-reviewed digestive supplements, like PetLabCo.’s Pumpkin Fiber Blend.

Q: Can I give my dog fiber supplements made for humans?
No. Many human fiber supplements contain artificial sweeteners or additives that are not suitable for dogs. Always choose supplements specifically formulated for canine digestion.

Q: How much fiber should a dog have per day?
It depends on their size, age, and dietary needs. Most dogs do well with a moderate amount of fiber, generally around 2–5% of the total diet. Your veterinarian can help guide the right amount for your dog.

Q: Can fiber help with loose stools?
Yes—certain types of fiber, especially pumpkin and psyllium husk, can help support stool quality. Always rule out underlying issues with your vet if your dog has ongoing diarrhea.

Q: Is too much fiber bad for dogs?
Yes. Excess fiber can lead to bloating, gas, or nutrient absorption issues. Introduce fiber slowly and observe how your dog responds.

Final Thoughts: Good Sources of Fiber for Dogs

Knowing what is a good source of fiber for dogs can help you make thoughtful choices that support their daily comfort and digestion. Ingredients like pumpkin fiber blend, sweet potato, and flaxseed can play a role in supporting gut health when used as part of a balanced routine.

As always, consult your veterinarian before introducing any new supplements or dietary changes, especially for dogs with sensitive stomachs or ongoing digestive concerns.

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