Functional Testing

A range of functional tests are available to assess your health in-depth.

Dr. Natasja Fox offers advanced testing, including hormone panels, nutritional assessments, and allergy tests—ranging from food sensitivities to mold exposure.

The two most commonly used tests are:

DUTCH Hormone Test: A comprehensive analysis of hormone levels, ratios, metabolism, stress response, and sleep regulation.
Microbiome Test: Evaluates gut health, digestion, inflammation, and the impact of your diet and microbes on overall well-being.

Advanced Dried Urine Hormone Analysis (DUTCH Test)

The DUTCH Test is one of the most advanced methods for assessing hormone metabolism, adrenal function, and circadian rhythm regulation. Unlike standard blood tests, it offers a comprehensive, non-invasive analysis of hormone production, metabolism, and elimination—ideal for those experiencing symptoms despite normal lab results.

Who Should Consider This Test?

It’s particularly beneficial for those struggling with:

· Hormonal Imbalances: PMS, irregular, heavy periods, or perimenopausal symptoms

· Metabolic & Skin Issues: Weight gain, low libido, hair loss, or acne

· Stress & Mood Concerns: Chronic stress, fatigue, mood disorders, or sleep disturbances

· Cyclical Symptoms: Headaches, migraines, fatigue, weight gain, mood swings, depression, anxiety, brain fog, or poor memory recall

· Men’s Health: Prostate health, hair loss, low libido, poor muscle development, weight gain, stress intolerance, or acne

What the DUTCH Test Measures

Cortisol & Stress Response: Tracks cortisol patterns over 24 hours, revealing adrenal function and sleep disturbances.
Melatonin Levels: Evaluates sleep-wake cycle regulation and whether disrupted sleep is hormone-related.
Sex Hormones (Oestrogen, Progesterone, Testosterone): Identifies imbalances causing fatigue, mood swings, and menstrual irregularities.
Hormone Metabolism & Detoxification: Assesses liver processing of hormones, oestrogen dominance risks, and conditions like PCOS, fibroids, endometriosis, and hirsutism.
Environmental Toxins: Detects hormone-disrupting chemicals (plastics, phthalates) affecting metabolism and detoxification.

Why Do This Test?

Identifies the root cause of hormonal symptoms (fatigue, mood swings, weight gain, insomnia, brain fog).
Assesses adrenal function and stress resilience for managing burnout.
Guides personalised hormone therapy and detox strategies.

Timing & Price

💰 $430 | Typically done on day 21 of a 28-day cycle (adjusted for irregular cycles).

Have questions? Reach out to book your test - info@natasjafox.com

Comprehensive Gut Microbiome Analysis

The Microbiome Test is an advanced stool analysis that assesses the composition and function of your gut bacteria, identifying imbalances that may contribute to digestive issues, inflammation, and chronic health conditions. Unlike standard tests, it provides a detailed map of your gut microbiome, helping pinpoint the root cause of symptoms and guiding targeted interventions for gut health, immune function, and overall well-being.

Who Should Consider This Test?

This test is beneficial for individuals experiencing:

Bloating, gas, acid reflux, low appetite, constipation or diarrhoea
IBS, SIBO, leaky gut, or food sensitivities
Skin conditions like acne, eczema, or rosacea
Brain fog, fatigue, depression, or anxiety
Autoimmune disorders and chronic inflammation
Weight management issues or metabolic imbalances

What the Microbiome Test Measures

Gut Bacteria Balance: Identifies beneficial vs. harmful microbes affecting digestion, immunity, and metabolism.
Pathogens & Dysbiosis: Detects bacterial, viral, and fungal overgrowths linked to IBS, SIBO, and infections.
Inflammation & Leaky Gut Markers: Measures gut permeability, immune response, and inflammation levels.
Digestive Function: Assesses enzyme activity, bile acids, and short-chain fatty acid production for nutrient absorption.
Metabolic Health & Toxin Clearance: Identifies microbiome-related factors affecting detoxification, hormone metabolism, and weight regulation.