Naturopathic and Functional Medicine Doctor in Pleasant Hill, CA

Gut–Brain Axis Care

inflammation

Functional & Naturopathic Medicine for Digestive, Neurological & Emotional Health

Pleasant Hill, CA | Virtual Care Available Throughout California

At Salus Natural Medicine, we specialize in supporting the gut–brain axis — the complex, bidirectional communication system between the digestive tract, nervous system, immune system, and brain.
Led by Dr. Jenny Root, ND, our practice integrates naturopathic medicine and functional medicine to help patients in Pleasant Hill, Walnut Creek, and throughout California—both in person and virtually—address chronic digestive issues, anxiety, depression, brain fog, fatigue, inflammation, and nervous system dysregulation by treating the gut and brain as one connected system.

Table of Contents

The Gut and Brain Are in Constant Communication

The gut and brain are not separate systems.
They communicate continuously through:
  • The vagus nerve
  • Neurotransmitters (including serotonin, GABA, dopamine)
  • Immune and inflammatory signaling
  • Hormonal pathways
  • Microbial metabolites produced by the gut microbiome
In fact, over 70% of the immune system and the majority of serotonin production are linked to the gut. When gut function is disrupted, brain and mood symptoms often follow — and vice versa.

What Is the Gut–Brain Axis?

The gut–brain axis is the integrated network connecting:
  • The gastrointestinal tract
  • The central and autonomic nervous systems
  • The immune system
  • The endocrine (hormonal) system
  • The gut microbiome
This system helps regulate:
  • Mood and emotional resilience
  • Stress response
  • Cognition and focus
  • Sleep quality
  • Inflammation
  • Pain perception
  • Appetite and metabolism
The gut-brain axis helps regulate cognition and focus
When communication along this axis becomes dysregulated, symptoms often appear across multiple systems simultaneously.

Common Signs of Gut–Brain Axis Dysregulation

Gut–brain imbalance can present in many ways, including:

Digestive

  • Bloating, gas, or abdominal discomfort
  • IBS-type symptoms
  • Constipation or diarrhea
  • Food sensitivities
  • Nausea or reflux

Neurological & Cognitive

  • Brain fog
  • Poor concentration
  • Memory issues
  • Headaches

Mood & Emotional

  • Anxiety or panic
  • Low mood or emotional flatness
  • Irritability
  • Stress intolerance

Systemic

  • Chronic fatigue
  • Inflammation
  • Hormonal imbalance
  • Sleep disruption
  • Heightened sensory sensitivity
Many patients notice that digestive flares and mood symptoms rise and fall together.

Why the Gut–Brain Axis Is Often Missed

In conventional care:
  • Digestive symptoms are treated separately from mental health
  • Mood symptoms are treated without evaluating gut physiology
  • Lab results may appear “normal”
  • Root causes such as inflammation, dysbiosis, or immune activation are overlooked
Patients are often told:
  • “It’s anxiety”
  • “It’s IBS”
  • “It’s stress”
At Salus Natural Medicine, we recognize these as interconnected signals, not separate diagnoses.

How Gut Health Influences the Brain

Gut dysfunction can affect the brain through:
  • Altered neurotransmitter production
  • Increased intestinal permeability (“leaky gut”)
  • Immune activation and cytokine signaling
  • Microbial imbalance (dysbiosis)
  • Production of neuroactive metabolites
  • Increased inflammatory burden
These pathways can contribute to:
  • Anxiety and depression
  • Brain fog and cognitive fatigue
  • Heightened stress response
  • Sleep disturbance
  • Worsening chronic illness symptoms
Gut dysfunction can contribute to anxiety and depression

How the Brain and Nervous System Affect the Gut

The relationship goes both ways.
Chronic stress or nervous system dysregulation can:
  • Slow or disrupt digestion
  • Alter gut motility
  • Reduce stomach acid and enzyme output
  • Change microbiome composition
  • Increase gut inflammation
This is why digestive symptoms often worsen during periods of stress, illness, or emotional overwhelm.

Our Functional & Naturopathic Approach to the Gut–Brain Axis

At Salus Natural Medicine, gut–brain support is integrated, not siloed.
Care often focuses on:

1. Whole-System Assessment

We evaluate:
  • Digestive symptoms and patterns
  • Stress physiology and nervous system regulation
  • Mood, sleep, and cognitive symptoms
  • Immune and inflammatory markers
  • Hormonal and metabolic context
  • Environmental or toxic exposures
Symptoms are interpreted as part of a connected system, not in isolation.

2. Identifying Root Contributors

Common drivers of gut–brain dysregulation include:
  • Dysbiosis or microbial imbalance
  • Chronic inflammation
  • Food sensitivities
  • Blood sugar instability
  • Hormonal transitions
  • Mold or environmental exposure
  • Nervous system dysregulation
Addressing the right drivers is more important than treating everything at once.

3. Supporting the Gut Without Overwhelming the System

Many patients worsen with aggressive gut protocols.
Care may include:
  • Gentle digestive support
  • Nutritional and micronutrient repletion
  • Botanical medicine
  • Immune-modulating strategies
  • Nervous system stabilization
We prioritize tolerance, pacing, and sustainability.

4. Integrating Nervous System Regulation

Gut healing is limited when the body feels unsafe.
Supporting vagal tone and parasympathetic activity often:
  • Improves digestion
  • Reduces inflammation
  • Enhances gut repair
  • Improves mood and sleep
This integration is essential in chronic and complex illness.

Gut–Brain Health in Chronic & Complex Conditions

Gut–brain axis dysfunction commonly overlaps with:
  • Anxiety and depression
  • Chronic fatigue and burnout
  • Mold toxicity and CIRS
  • Autoimmune patterns
  • Thyroid disorders
  • Hormonal imbalance
  • Metabolic dysfunction
Gut-brain axis dysfunction often overlaps with hormonal imbalance
Supporting gut–brain communication often unlocks progress when other approaches have stalled.

In-Person & Virtual Gut–Brain Care

In-Person Appointments

Pleasant Hill, CA

Virtual Consultations

Available throughout California

Virtual care works exceptionally well for gut–brain axis support, allowing continuity without added stress.

Is Gut–Brain Axis Care Right for You?

You may benefit from this approach if:
  • Digestive symptoms and mood symptoms coexist
  • Stress worsens gut or brain symptoms
  • You experience brain fog or fatigue with GI issues
  • You feel your symptoms are interconnected
  • You want root-cause, whole-system care

Frequently Asked Questions

Can gut health really affect anxiety and depression?
Yes. The gut plays a central role in neurotransmitter production, immune signaling, and nervous system regulation.
We assess which system needs stabilization first — often both are addressed gently and simultaneously.
Yes. Gut–brain axis care is available virtually throughout California.

Heal the Connection — Not Just the Symptoms

If your digestive, emotional, and cognitive symptoms feel intertwined, your body may be asking for integrated gut–brain support.

Serving Pleasant Hill, Walnut Creek, and Patients Across California