Functional Medicine. Environmental Health.
A Functional Medicine perspective on how environment and modern living shape health
this is what you are here for:
Environmental Health
Longevity & Healthspan
Systems-Based Medicine
Marie Guerlain BSC NT, ND
functional medicine practitioner,
and environmental toxin expert
Marie is a Functional Medicine practitioner with a particular focus on the role of environmental toxins in chronic disease. Her work centres on detoxification pathways and holistic, systems-based approaches that consider the individual as a whole rather than isolated symptoms.
Her areas of specialist interest include chronic fatigue, autoimmune conditions, gut health, and environmentally driven illness, including mould exposure, Lyme disease, and heavy metal toxicity. Marie’s expertise lies in analysing complex health patterns through a Functional Medicine lens, with an emphasis on root causes, biological systems, and long-term health resilience.
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Functional Medicine insights
An evidence-informed, systems-based perspective on health, resilience, and longevity
Detox Your Home
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latest blog articles:

Menopause Brain Fog Supplements: What Actually Works and Why
If you have found yourself walking into a room and forgetting why you are there, losing words mid-sentence, struggling to hold a thought or feeling like your sharpness has quietly

Adrenal Fatigue and Cortisol Supplements: What the Science Actually Says
If you are exhausted in a way that sleep does not fix, wired but tired at the same time, struggling to respond to stress the way you once did, or

What is Methylation and What Are Methylated Vitamins? A Complete Guide
Methylation is one of the most important and far-reaching biochemical processes in the human body.
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