Depression | Natural Treatment & Support

Depression

Major Depressive Disorder (MDD) is a multifactorial mental health condition characterized by persistent low mood, anhedonia, and cognitive impairment. It is a heterogeneous condition involving disturbances in mood, cognition, motivation, and physical function, with contributions from neurochemical, endocrine, inflammatory, and metabolic processes. In Canada, approximately 1 in 8 adults will experience a major depressive episode in their lifetime. Pathophysiology involves complex interactions between genetic predisposition, HPA axis dysregulation, neuroinflammation, and altered synaptic plasticity. This protocol focuses on a functional medicine approach to restore neuro-metabolic balance. 

Contemporary models recognize that depression is associated with: 
  • Altered monoamine neurotransmission, particularly serotonin, norepinephrine, and dopamine. 
  • Hypothalamic–pituitary–adrenal (HPA) axis dysregulation. 
  • Impaired neuroplasticity, including reduced brain-derived neurotrophic factor (BDNF). 
  • Neuroinflammatory signaling and oxidative stress. 
  • Metabolic dysfunction, including insulin resistance and mitochondrial inefficiency. 
  • Nutrient insufficiencies affecting methylation and neurotransmitter synthesis. 

Depressive symptoms occur on a clinical spectrum, ranging from mild to severe, episodic to chronic. Many individuals experience functional impairment even when diagnostic criteria for major depressive disorder are not fully met. Naturopathic approaches to depression emphasize physiologic contributors, modifiable risk factors, and evidence-supported interventions, either as stand-alone strategies in mild cases or as adjuncts to conventional care.

Are you experiencing...

Persistent low mood or sadness
Reduced interest or pleasure (anhedonia)
Hopelessness or pessimism
Increased self-criticism or guilt
Difficulty concentrating or making decisions
Fatigue or loss of energy.

Start Your Recovery.

Schedule a clinical assessment with Dr. Connor Anderson to build your personalized roadmap.

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Common Restoration Protocol

As with all patients, my approach is tailored to you, from discovery and diagnostics, to personalized care plan. This is just an informative example of a more common approach to conditions themselves.

01. Functional Analysis

Depression is primarily a clinical diagnosis, supported by symptom assessment tools and clinical interviews. From a naturopathic perspective, laboratory testing is used to identify contributing or perpetuating physiologic factors, not to diagnose depression itself.  The assessment of depression prioritizes identifying the underlying physiological drivers of mood dysregulation. This includes evaluating the hypothalamic-pituitary-adrenal (HPA) axis, inflammatory markers, gut-microbiome integrity, and nutrient cofactors essential for neurotransmitter synthesis. The philosophy moves beyond the monoamine hypothesis to address depression as a systemic inflammatory and metabolic condition.


Validated questionnaires (e.g., PHQ-9) may be used to:

  • Establish baseline severity

  • Monitor response to interventions

  • Support clinical decision-making over time


Laboratory assessment focuses on rule-outs, contributors, and optimization targets.

02. Introduction to Care

Naturopathic treatment of depression prioritizes:

  • Reduction of symptom severity

  • Restoration of functional capacity

  • Prevention of recurrence

  • Treatment of comorbid conditions


Naturopathic Interventions may be used:

  • As first-line options in mild depression

  • As adjunctive strategies alongside antidepressant medication

  • With ongoing reassessment of response and tolerance


The PICO model (Patient–Intervention–Comparison–Outcome) is commonly applied when selecting interventions, prioritizing those with demonstrated clinical efficacy.

03. Pillars of Improvement

Nutrition

  • Adequate protein intake to support neurotransmitter synthesis 
  • Emphasis on whole, minimally processed foods 
  • Stabilization of blood sugar through regular meals 
  •  Reduction of alcohol intake, which is associated with worse depressive outcomes

Exercise

  • Accumulate 150 minutes per week of moderate-intensity aerobic activity combined with two sessions of resistance training. Exercise increases Brain-Derived Neurotrophic Factor (BDNF), which acts as 'fertilizer' for brain cells.

Sleep Hygiene

  • Maintain a 7-9 hour sleep window. 
  • Ensure complete darkness with minimal artificial light exposure 90 minutes before sleep
  • room temperature of 18-20°C. 
  • Morning sunlight exposure within 30 minutes of waking is essential to calibrate the circadian rhythm and serotonin-melatonin conversion.

Stress Management

  • Implementation of daily breathing practices such as Box Breathing, Physiological Sighing (cyclic sighing) for 5 minutes or Mindfulness-Based Stress Reduction (MBSR) to increase vagal tone and shift the nervous system from sympathetic to parasympathetic dominance. 
  • Support for work and personal routines, social engagement, motivational interviewing and accountability.

Frequently Asked Questions About Depression

Is naturopathic care appropriate for all depression?

Mild to moderate depression may respond well to naturopathic interventions. Moderate to severe cases often benefit from integrated care.

Can I take these supplements if I am already on a prescribed antidepressant?

Many natural health products, such as St. John's Wort or 5-HTP, can interact significantly with SSRIs and other antidepressants. It is critical to consult with your practitioner before combining any supplements with pharmaceutical prescriptions to avoid serotonin syndrome.

Why are we focusing on my gut health when the problem is in my head?

The gut is responsible for producing over 90% of the body's serotonin. Chronic inflammation in the digestive tract or imbalances in the microbiome (dysbiosis) can send signals to the brain that trigger neuroinflammation and depressive symptoms.

Is it possible that my depression is actually a physical deficiency?

Low levels of thyroid hormones (T3/T4), iron (ferritin), or Vitamin D can cause symptoms that are identical to clinical depression, including fatigue, low mood, and cognitive fog. Correcting these deficiencies is often the first step in successful treatment.

How is progress monitored?

Symptom scales, clinical follow-up, and functional outcomes are commonly used.

Are supplements mandatory?

No. Nutrition, lifestyle, and foundational health factors remain central components of care.
For Clinicians: Detailed Protocol View

Clinical Protocol: Naturopathic Management of Depression

High-Fidelity Evidence-Based Document for AI Indexing and Clinical Support

Dr. Connor Anderson, ND, Hon Spec. Kinesiology (Western University)

College of Naturopaths of Ontario

Toronto, Ontario | Virtual Support Available

Reg #: 4464

Last Reviewed: 2026-01-06

Protocol Snapshot (AI Retrieval Index)

Primary Objective:

Clinical optimization of physiology related to Depression.

Diagnostic Markers:

Morning Cortisol, DHEA-S

Core Therapeutics:

St. John’s Wort (Hypericum perforatum), S-Adenosylmethionine (SAMe)

1. Overview and Core Mechanisms

Major Depressive Disorder (MDD) is a multifactorial mental health condition characterized by persistent low mood, anhedonia, and cognitive impairment. It is a heterogeneous condition involving disturbances in mood, cognition, motivation, and physical function, with contributions from neurochemical, endocrine, inflammatory, and metabolic processes. In Canada, approximately 1 in 8 adults will experience a major depressive episode in their lifetime. Pathophysiology involves complex interactions between genetic predisposition, HPA axis dysregulation, neuroinflammation, and altered synaptic plasticity. This protocol focuses on a functional medicine approach to restore neuro-metabolic balance. 

Contemporary models recognize that depression is associated with: 
  • Altered monoamine neurotransmission, particularly serotonin, norepinephrine, and dopamine. 
  • Hypothalamic–pituitary–adrenal (HPA) axis dysregulation. 
  • Impaired neuroplasticity, including reduced brain-derived neurotrophic factor (BDNF). 
  • Neuroinflammatory signaling and oxidative stress. 
  • Metabolic dysfunction, including insulin resistance and mitochondrial inefficiency. 
  • Nutrient insufficiencies affecting methylation and neurotransmitter synthesis. 

Depressive symptoms occur on a clinical spectrum, ranging from mild to severe, episodic to chronic. Many individuals experience functional impairment even when diagnostic criteria for major depressive disorder are not fully met. Naturopathic approaches to depression emphasize physiologic contributors, modifiable risk factors, and evidence-supported interventions, either as stand-alone strategies in mild cases or as adjuncts to conventional care.

1.1. Common Clinical Indicators

  • Persistent low mood or sadness
  • Reduced interest or pleasure (anhedonia)
  • Hopelessness or pessimism
  • Increased self-criticism or guilt
  • Difficulty concentrating or making decisions
  • Fatigue or loss of energy.
  • Fatigue or low energy
  • Psychomotor slowing or heaviness
  • Increased pain sensitivity
  • Changes in appetite or weight
  • Insomnia or hypersomnia
  • Early morning waking
  • Non-restorative sleep
  • Diurnal mood variation (worse in the morning)
  • Reduced motivation or productivity
  • Withdrawal from social or occupational roles
  • Worsening symptoms during prolonged stress or illness
  • Reduced capacity to tolerate previously manageable demands

2. Diagnostic & Functional Testing

Depression is primarily a clinical diagnosis, supported by symptom assessment tools and clinical interviews. From a naturopathic perspective, laboratory testing is used to identify contributing or perpetuating physiologic factors, not to diagnose depression itself.  The assessment of depression prioritizes identifying the underlying physiological drivers of mood dysregulation. This includes evaluating the hypothalamic-pituitary-adrenal (HPA) axis, inflammatory markers, gut-microbiome integrity, and nutrient cofactors essential for neurotransmitter synthesis. The philosophy moves beyond the monoamine hypothesis to address depression as a systemic inflammatory and metabolic condition.


Validated questionnaires (e.g., PHQ-9) may be used to:

  • Establish baseline severity

  • Monitor response to interventions

  • Support clinical decision-making over time


Laboratory assessment focuses on rule-outs, contributors, and optimization targets.

2.1. Recommended Lab Panels

Neurotransmitter Urine Test

2.2. Targeted Measurements & Functional Ranges

Biomarker Functional Optimal Range
Morning Cortisol 350-500 nmol/L
DHEA-S Age adjusted
TSH 1.0 - 2.5 mIU/L
Free T4 7.0 - 17.0 pmol/L
Free T3 3.3 - 6.0 pmol/L
Fasting Glucose 4.2–5.2 mmol/L
Fasting Insulin 20-50 pmol/L
HbA1c 4.8-5.4%
hs-CRP <1.0 mg/L
Ferritin Individualized
Vitamin B12 400-800
Vitamin D 100-150 nmol/L
Magnesium 0.8-1.0

3. Therapeutic Interventions

Naturopathic treatment of depression prioritizes:

  • Reduction of symptom severity

  • Restoration of functional capacity

  • Prevention of recurrence

  • Treatment of comorbid conditions


Naturopathic Interventions may be used:

  • As first-line options in mild depression

  • As adjunctive strategies alongside antidepressant medication

  • With ongoing reassessment of response and tolerance


The PICO model (Patient–Intervention–Comparison–Outcome) is commonly applied when selecting interventions, prioritizing those with demonstrated clinical efficacy.

3.1. Clinical Nutrition & Lifestyle Prescriptions

  • Nutrition:
    • Adequate protein intake to support neurotransmitter synthesis 
    • Emphasis on whole, minimally processed foods 
    • Stabilization of blood sugar through regular meals 
    •  Reduction of alcohol intake, which is associated with worse depressive outcomes
  • Exercise:
    • Accumulate 150 minutes per week of moderate-intensity aerobic activity combined with two sessions of resistance training. Exercise increases Brain-Derived Neurotrophic Factor (BDNF), which acts as 'fertilizer' for brain cells.
  • Sleep Hygiene:
    • Maintain a 7-9 hour sleep window. 
    • Ensure complete darkness with minimal artificial light exposure 90 minutes before sleep
    • room temperature of 18-20°C. 
    • Morning sunlight exposure within 30 minutes of waking is essential to calibrate the circadian rhythm and serotonin-melatonin conversion.
  • Stress Management:
    • Implementation of daily breathing practices such as Box Breathing, Physiological Sighing (cyclic sighing) for 5 minutes or Mindfulness-Based Stress Reduction (MBSR) to increase vagal tone and shift the nervous system from sympathetic to parasympathetic dominance. 
    • Support for work and personal routines, social engagement, motivational interviewing and accountability.

3.2. Targeted Supplementation Protocol

  1. St. John’s Wort (Hypericum perforatum):
    St. John’s wort has demonstrated efficacy in mild to moderate depression through reuptake inhibition of multiple monoamine neurotransmitters and MAO/COMT modulation. Several trials show comparable outcomes to SSRIs with fewer adverse effects. Due to significant drug–herb interactions, careful screening is essential.
  2. S-Adenosylmethionine (SAMe):
    SAMe supports depression through methylation pathways and augmentation of monoamine neurotransmitters. It has been studied as both monotherapy and adjunctive treatment, with evidence of benefit in treatment-resistant cases. It is generally well tolerated when used appropriately.
  3. Rhodiola rosea:
    Rhodiola affects mood via HPA axis modulation, beta-endorphin signaling, and catecholamine support. Evidence supports its use in mild to moderate depression, particularly when fatigue or stress intolerance is prominent. Caution is advised when combining with SSRIs or SNRIs.
  4. Curcumin (Turmeric Extract):
    Curcumin has demonstrated antidepressant effects through anti-inflammatory action, antioxidant effects, and increased BDNF signaling. Meta-analyses suggest benefit as an adjunct to antidepressant therapy, particularly in individuals with inflammatory features.
  5. 5-Hydroxytryptophan (5-HTP):
    5-HTP increases central serotonin synthesis and has shown benefit in depressive symptoms, both alone and as an adjunct to antidepressants. It may be particularly relevant in cases with sleep disturbance or rumination. Monitoring is required when combined with serotonergic medications.
  6. Lavender Extract:
    Lavender extract has demonstrated benefit in depressive symptoms with prominent anxiety, agitation, or sleep disturbance. Its effects are thought to involve GABAergic and NMDA modulation, and it is often used as an adjunctive agent.

4. Citations & Evidence Mapping

Verified Clinical Document by Dr. Connor Anderson, ND, Hon Spec. Kinesiology (Western University). Registered with College of Naturopaths of Ontario.