Spilled Kibble

What’s Really in Your Dog’s Food? Additives That Can Disrupt Digestion

Table of Contents

    Key takeaways:

    • Many commercial dog foods contain hidden additives and synthetic fillers
    • These ingredients can cause diarrhea, gas, bloating, and itching
    • Common culprits include preservatives, flavor enhancers, and colorants
    • Fillers may appear as “natural,” but often irritate the gut and skin
    • Clean, additive-free food improves stool quality and digestive health
    • Brothers Dog Food contains no artificial additives or unnecessary fillers

    The Stuff You Don’t See Is What’s Causing Trouble

    If your dog has inconsistent stools, frequent gas, or chronic digestive issues, the problem might not be the protein—it might be the additives hiding in their food.

    Commercial dog foods often include chemical preservatives, flavor enhancers, texturizers, and synthetic color—all of which can negatively affect:

    Many of these ingredients are legal—but they aren’t necessary. And they’re often not easy to spot unless you know what to look for.

    Ingredients to Watch Out For

    Here’s a breakdown of common additives and fillers that can cause digestive upset:

    Ingredient

    Why It’s a Problem

    Propylene Glycol

    Preservative linked to GI irritation

    Carrageenan

    Thickener that may trigger gut inflammation

    Sorbitol

    Sugar alcohol that can lead to bloating and diarrhea

    Artificial Colors

    Unnecessary chemicals linked to hyperactivity and intolerance

    “Natural Flavor”

    Often vague; can include MSG or animal digest

    Meat By-Products

    Unspecified parts of animals; harder to digest

    BHA/BHT

    Synthetic preservatives with controversial health effects

    Corn, Soy, Wheat

    Common fillers that can cause food sensitivities and spike blood sugar

    Even “premium” brands sometimes include these to improve shelf life, appearance, or taste.

    (Sources: Puppies.com, Dogster, Dr. Killigan’s, The Pet Vet)

    Why These Additives Cause Digestive Issues

    Your dog’s digestive system isn’t built to process artificial ingredients. When it encounters these additives, it may react with:

    Over time, these ingredients can disrupt the gut microbiome, causing long-term issues like leaky gut, poor nutrient absorption, and inflammation.

    What “Additive-Free” Really Means

    When a dog food is truly free from synthetic additives, it should:

    • Rely on real, whole ingredients—not chemical versions
    • Use natural preservatives (like mixed tocopherols) sparingly and safely
    • Avoid vague terms like “natural flavors” or “animal fat”
    • Be transparent about sourcing and formulation

    How Clean Food Supports Better Digestion

    By removing hidden fillers and unnecessary chemicals, you help restore your dog’s natural digestive rhythm. Here’s what you may notice:

    • Smaller, firmer stools
    • Less gas and bloating
    • Fewer tummy upsets during transitions
    • Better absorption of nutrients
    • Healthier skin and a shinier coat
    • More predictable energy and appetite

    This is especially important for dogs with:

    Brothers Dog Food: Nothing to Hide

    At Brothers, we believe what’s NOT in the bag matters just as much as what is.

    That’s why all our recipes are:

    • Free of chemical additives and synthetic fillers
    • Free of corn, soy, wheat, white potatoes, or artificial color
    • Made with whole food ingredients your dog’s body recognizes
    • Packed with natural prebiotics, probiotics, and digestive enzymes
    • Designed to protect the gut, not stress it
    • No mystery meat. No fake flavors. Just real food made to be absorbed, not passed through.

    Final Thoughts: Don’t Let Additives Undermine Your Dog’s Health

    You shouldn't have to be a scientist to buy quality dog food—but knowing what to avoid can make all the difference in your dog’s digestion and well-being.

    If your dog’s poop is inconsistent, if they’re gassy or itchy, or if they just don’t seem quite right—it might be time to switch to a clean, additive-free formula built for real nutrition.

    Disclaimer: This post is for educational purposes only and is not a substitute for veterinary advice. Always consult your vet when making changes to your dog’s diet.

    Sources

    Leave a comment

    Please note, comments need to be approved before they are published.

    Related Categories