At Biome4Pets, we’re increasingly seeing a fascinating - and important pattern.
Dogs presenting with:
- Hyperactivity
- Poor focus or trainability
- Impulsivity or over-reactivity
…often share a distinct microbiome signature.
What’s even more compelling? This same pattern is now being identified in human ADHD research.
This opens up a powerful new perspective:
- Behaviour is not just training
- It’s not just genetics
- It may be microbiome-driven
🔬 What the Science Shows
Recent human research using 16S microbiome sequencing has identified specific bacterial patterns associated with ADHD.
Key findings include:
- Increased Sutterella
- Increased Bacteroides uniformis
- Increased Bacteroides ovatus
- Links between these bacteria and symptom severity
At the same time, behavioural research confirms that dogs show ADHD-like traits - including inattention, hyperactivity, and impulsivity - with measurable functional impairment in a subset of the population.
👉 Read more about how microbiome testing works here
🧬 What We’re Seeing in Dogs
At Biome4Pets, we’ve analysed thousands of canine microbiome samples - and the overlap is striking.
Dogs with behavioural challenges frequently show:
- High Sutteralla (>5%)
- Elevated Prevotella
- Lower microbial diversity
- Increased Bacteroides species (especially B. uniformis)
This creates a consistent gut-brain axis pattern.
🧠 Why This Matters: The Gut–Brain Axis
The gut microbiome communicates directly with the brain through multiple pathways:
1. Immune Signalling (Cytokines)
Certain bacteria (like Sutterella) interact with the gut lining and immune system.
This can lead to:
- Low-grade inflammation
- Altered cytokine signalling
- Changes in brain function and behaviour
2. Neurotransmitter Production
Gut bacteria influence:
- Dopamine
- Serotonin
- GABA
These are the same neurotransmitters involved in:
- Focus
- Impulse control
- Mood regulation
3. Metabolites (SCFAs)
Bacteria like Prevotella alter fermentation patterns, producing metabolites such as:
- Propionate
- Butyrate
In excess or imbalance, these can:
- Affect brain signalling
- Alter energy regulation
- Influence behaviour
⚠️ The High-Risk Microbiome Pattern
From a clinical perspective, the most significant pattern we see is:
High Sutterella + High Prevotella + Low Diversity
This combination is strongly associated with:
- Behavioural instability
- Poor resilience
- Reduced adaptability to training
👉 Learn how we assess this in your dog’s report:
Here’s the exciting part: yes - we can influence this. Unlike genetics, the microbiome is modifiable.
🌿 What Works: Evidence-Based Interventions
1. Berberine
Berberine is one of the most consistent tools we’ve used clinically.
It helps:
- Reduce overgrowth of problematic bacteria
- Improve microbial balance
- Support metabolic and neurological stability
Many owners report:
- Calmer behaviour
- Improved focus
- Better trainability
2. Soil-Based Probiotics
Spore-forming probiotics (soil-based organisms) are particularly effective in these cases.
They:
- Increase microbial diversity
- Stabilise gut ecology
- Improve resilience of the microbiome
3. Diet Matters (More Than You Think)
We consistently see this pattern in dogs on:
- High-starch diets
- Low fibre diversity
- Processed feeding regimes
Shifting toward:
- Diverse fibre sources
- Whole-food inputs
- Lower fermentable carbohydrate load
…can dramatically improve outcomes.
🧠 The Owner Factor (A Fascinating Insight)
One of the most interesting observations? Many of these dogs have owners with ADHD traits themselves. This isn’t coincidence.
Shared factors may include:
- Lifestyle patterns
- Feeding habits
- Environmental structure
- Even shared microbiome exposure
These cases are often:
- Harder to shift
- More persistent
- But still highly responsive with the right approach
🚀 A New Way to Understand Behaviour
This changes everything.
Instead of asking: "Why won’t my dog listen?”
We start asking: "What is their microbiome telling us?”
🧪 Start With Data, Not Guesswork
If your dog shows:
- Hyperactivity
- Poor focus
- Reactivity
- Behaviour that doesn’t improve with training
…it’s time to look deeper.
👉 Start your dog’s microbiome analysis here
🧠 Final Thought
Behaviour is biology. And when you understand the microbiome, you unlock a completely new level of insight - and results.
