40% off first order40% Off Your First Order — applied automatically at checkout

Log in
Tom&Sawyer
Shop
Meet the ExpertsBlog
Build a plan

A Quick Scoop on Fibre in Your Pet's Diet

By Dr. Hannah Godfrey, PhD · March 1, 2022 · Updated January 2, 2026

We're the same type of weird if, as a pet parent, you obsessively study your pet's poop.

What is it trying to tell you? What influences your pet's bowel movements?

Fibre - The Digestive Tract Chaperone

Everything you feed your pet affects their digestion and poop. Protein, fats, and carbohydrates all impact your pet's health. But they all rely on fibre to get where they need to be.

Fibre slows down the movement of food through the digestive system.

But what does that mean?

Tom&Sawyer — A Quick Scoop on Fibre in Your Pet's Diet
Close-Up Photo Of Brown Rice On Wooden Spoon

When food moves through your pet's digestive system slower, their body has more time to extract nutrients from the food.

The more food that is digested and absorbed, the less waste there is to be deposited in your pet’s poop. This means the bulk of their poop will be made up of indigestible fibre, as opposed to nutrients they missed out on.

The slowed movement of food through the digestive tract may even prolong the time before your pet’s next poop.

Fibre can also influence physical characteristics of poop, such as shape and firmness. As Dr. Joe Inglis describes below, it's important to know your dogs' poop and be able to identify any changes to their bowel movement as they can indicate changes in health status:

"As a veterinarian, I can’t emphasize enough the importance of paying attention to your pet's bowel movements. Your pet’s poop offers valuable insights into their digestive health. It’s a reflection of the quality of their diet and their overall well-being. Fiber plays a crucial role in this process, helping to regulate digestion and ensure that nutrients are absorbed effectively. By studying these daily deposits, we can identify potential health issues and ensure that our furry companions are getting the nutrition they truly need. After all, a healthy gut leads to a happy pet!" - Dr. Joe Inglis, BVSc, MRCVS.

Dr. Inglis is a UK-based Veterinarian and expert in animal nutrition. He is also the founder of VetChef and collaborator on the Tom&Sawyer VetChef line of recipes found at www.vetchef.pet

What about other nutrients?

Tom&Sawyer — A Quick Scoop on Fibre in Your Pet's Diet
Roast chicken for dogs

Protein, fats, and carbohydrates can also affect how quickly food is digested, but what's more important for these nutrients is their digestibility .

Fibre can help your pet absorb more nutrients from their food, but that isn't much good if the nutrients are low-quality or hard to digest. And the less their gut absorbs, the more nutrients end up in their poop, and the more poops you have to scoop!

To feed your pet for better poops, look for highly digestible ingredients and a moderate fibre content! (Hint: We've saved you the trouble by making nutritionist-developed pet meals with the highest quality, human-edible ingredients already). Shop our meals here!

Written by: Hannah Godfrey Animal Nutritionist BSc.H. | MSc. | Ph.D. www.tomandsawyer.com

About the author

Dr. Hannah Godfrey, PhD

Animal Nutritionist · Lead Nutrition Scientist & Technical Advisor

Hannah leads the nutrition science behind every Tom&Sawyer recipe — a PhD animal nutritionist who turns peer-reviewed nutrition into meals portioned to each pet's real needs.

More from the journal

  • Can Dogs Eat Sweet Potatoes? The Powerful Superfood Your Dog Might Already LoveSweet potatoes show up in a lot of high-quality pet nutrition for good reason. Can dogs eat sweet potatoes? Yes, and we'd go further than that. Sweet potatoes are one of the most nutrient-dense, digestible, and well-tolerated whole-food ingredients you can put in a dog's bowl.
  • National Kitten Day: What Early Cat Meals Can Teach Us About Building Better Feeding HabitsNational Kitten Day on July 10 is one of those moments that invites a bigger conversation. It's not only about celebrating how small and determined kittens are. It's about what we choose to feed them from the very start, and what those early choices set in motion.
  • What We See in Summer Bowls: How Hydration Changes the Way Dogs and Cats Eat in JulyJuly is National Pet Hydration Awareness Month, and if you pay close attention to your pet's bowl during the warmer months, something shifts. Dogs get slower about finishing their meals. Cats grow even more selective than usual. These changes aren't random. They reflect how summer heat affects appetite and fluid balance in ways that go well beyond simply needing more water.
Tom&Sawyer
  • Facebook
  • Instagram
  • TikTok
  • YouTube
  • Pinterest
Get started
  • Shop
Why Tom&Sawyer?
  • Our Standards
  • Science & Research
  • Our Story
  • Giving Back
  • Meet the Experts
  • Reviews
Explore
  • Blog
  • FAQ
  • Contact Us
  • Account
Join the pack

Get access to the latest updates in pet health and wellness, exclusive offers, and more!

Tom&Sawyer
  • Facebook
  • Instagram
  • TikTok
  • YouTube
  • Pinterest
Get started
Why Tom&Sawyer?
  • Our Standards
  • Science & Research
  • Our Story
  • Giving Back
  • Meet the Experts
  • Reviews
Explore
  • Blog
  • FAQ
  • Contact Us
  • Account
Join the pack

Get access to the latest updates in pet health and wellness, exclusive offers, and more!

© 2026 All rights reserved.
Shipping & ReturnsTerms of SaleTerms of ServicePrivacy Policy
Build my pet's plan