Microbiome: Why It Matters and How Testing Can Help

🐾 Understanding Your Dog’s Microbiome

Just like humans, dogs have a vast community of microorganisms living in their digestive tract — collectively known as the microbiome. This ecosystem includes bacteria, fungi, and other microbes that work together to support digestion, immunity, behaviour, and overall wellbeing.

A balanced microbiome helps maintain health. An imbalanced microbiome can contribute to:

• Digestive discomfort

• Skin and ear issues

• Behavioural changes

• Reduced resilience to stress

Understanding how the microbiome works empowers you to support your dog from the inside out.

🔎 What Influences the Microbiome?

A dog’s microbiome is shaped by many factors:

• Diet & nutrition — fresh, minimally processed foods support microbial diversity

• Environment & lifestyle — exposure to chemicals, pollutants, or stress can disrupt balance

• Age & genetics — puppies inherit their first microbes from their mother

• Medications — antibiotics, frequent vaccinations, and some parasite treatments may affect gut flora

• Stress — emotional stress alters gut motility and microbial composition

When these influences overwhelm the system, the microbiome can shift out of balance.

🧪 Why Consider Microbiome Testing?

Many dogs with chronic itching, yeast imbalance, digestive issues, or behavioural changes undergo “allergy tests” that often highlight sensitivities, not true allergies.

Raw food allergies are extremely rare. More often, symptoms reflect microbiome imbalance, not a reaction to the food itself.

Microbiome testing (e.g., Pet Biome) can help identify:

• Low diversity

• Overgrowth of certain microbes

• Gut inflammation markers

• Imbalances linked to skin, digestion, or behaviour

This gives you a clearer picture of what your dog needs nutritionally and environmentally.

🔄 How the Gut Communicates With the Body

Think of the gut as a busy roundabout with multiple exits — each leading to a different body system. These pathways are called axes, and they explain why gut health affects so much more than digestion.

🟢 Gut–Skin Axis

• The gut influences the skin’s barrier and immune response.

• Environmental chemicals (cleaners, flea treatments) can indirectly affect the gut via this axis.

  
  

🟢 Gut–Joint Axis

• Gut imbalance may contribute to systemic inflammation.

• Inflammation can influence joint comfort and mobility.

  
  

🟢 Gut–Brain Axis

• The vagus nerve connects gut and brain.

• Microbes help produce neurotransmitters that influence mood, stress, and behaviour.

  
  

🟢 Gut–Immune Axis

• Around 70–80% of the immune system sits in the gut.

• A diverse microbiome supports a balanced immune response.

Supporting the gut means supporting the whole dog.

🔴 What Happens When the Microbiome Is Unbalanced?

An imbalance — known as dysbiosis — occurs when beneficial microbes decrease and less helpful microbes dominate.

This may contribute to:

• Food sensitivities or intolerance‑like symptoms

• Yeast overgrowth (itching, odour, paw staining)

• Digestive upset (diarrhoea, vomiting, suspected SIBO)

• Bad breath

• Gut inflammation

• Joint discomfort

• Behavioural changes (anxiety, reactivity)

Maintaining gut balance is key to long‑term wellbeing.

Several of the Facebook groups moderators, admins, and even co-owner Vic have completed testing for their dogs. With the greatest level of insight, the best targeted plan can be provided to help your dogs mental & physical wellbeing.

🟢 Foods That Naturally Support the Microbiome

These whole foods are commonly used by guardians to support gut diversity:

• Mushrooms 🍄 — rich in beta‑glucans

• Dandelion greens 🌿 — prebiotic fibre

• Eggs 🥚 — nutrient‑dense and easily digested

• Sardines 🐟 — whole‑food omega‑3s

• Berries 🍓 — antioxidants

• Fermented vegetables 🥬 — natural probiotics

• Jerusalem artichoke — inulin‑rich prebiotic

• Pomegranate 🍎 — polyphenols for microbial balance

• Herbs (rosemary, thyme, oregano) — aromatic compounds that support microbial harmony

  (Avoid in pregnant dogs; consult a pro‑raw vet if your dog has a medical condition.)

  
  

Feeding Guidelines

• Dandelion greens:

  • Small dogs: 1 tsp/day

  • Medium dogs: 1 tbsp/day

  • Large dogs: 2 tbsp/day

• Fermented veggies:

  • ½ tsp per 10kg bodyweight daily

• Pomegranate:

  • 1–2 tsp per 10kg bodyweight

    
    

🐾 Practical Steps to Support a Healthy Microbiome

These lifestyle choices help maintain microbial balance:

• Feed fresh, species‑appropriate food (raw or lightly cooked)

• Use gut‑supportive supplements such as mucilage herbs or probiotics

• Choose natural parasite prevention where appropriate

• Reduce exposure to household chemicals

• Wipe paws after walks to remove environmental irritants

• Titre test before boosters

• Choose ethical breeders who prioritise maternal gut health

• Support emotional wellbeing with force‑free training and calming routines

Small changes add up to big improvements in gut resilience.

🧪 Want to Explore Microbiome Testing?

You can learn more through:

➡️ Pet Biome — microbiome analysis

➡️ Raw Feeding for Dogs Made Simple UK — community support

➡️ Discount Codes | RFFDMSUK — save on testing kits

Testing helps you understand your dog’s unique microbial profile and tailor their diet and environment accordingly.

Science

Total antioxidant power in sled dogs supplemented with blueberries and the comparison of blood parameters associated with exercise - ScienceDirect

Shinrin-Yoku (Forest Bathing) and Nature Therapy: A State-of-the-Art Review - PubMed

Frontiers | The Role of the Canine Gut Microbiome and Metabolome in Health and Gastrointestinal Disease

Full article: The gut-joint axis mediates the TNF-induced RA process and PBMT therapeutic effects through the metabolites of gut microbiota

The Microbiota-Gut-Brain Axis: From Motility to Mood - PMC

The Gut Microbiome of Dogs and Cats, and the Influence of Diet - ScienceDirect

The impact of prenatal dog keeping on infant gut microbiota development - Panzer - 2023 - Clinical & Experimental Allergy - Wiley Online Library

The Natural Antioxidants, Pomegranate Extract and Soy Isoflavones, Favourably Modulate Canine Endothelial Cell Function - Baumgartner-Parzer - 2012 - International Scholarly Research Notices - Wiley Online Library

Frontiers | Effects of Synbiotics on the Fecal Microbiome and Metabolomic Profiles of Healthy Research Dogs Administered Antibiotics: A Randomized, Controlled Trial