Functional Medicine MD: What 5,000+ Patients Taught Him About Root Cause Medicine

In this episode of Return on Health, we speak with Dr. Peter Martin, physician, former CNS pharmacology researcher, and founder of FunMed, one of Europe’s leading functional medicine clinics.

Peter spent around 15 years in pharmacology research before his own burnout pushed him to look beyond the conventional model of symptom control. What started as a personal search for recovery became a data-driven clinical model built around root cause medicine, extensive biomarker testing, gut health, metabolism, and chronic disease prevention.

We talk about what functional medicine actually means, why chronic disease often needs a different care model, and what Peter has learned from treating more than 5,000 patients. He explains why fasting insulin may be one of the most overlooked markers in modern healthcare, how low-grade inflammation is often connected to gut health, and why normal lab results do not always mean someone is truly healthy.

We also get into the controversial parts: large biomarker panels, false positives, red meat, vegan diets, anti-nutrients, carnivore diets, and the weakness of much nutrition research. Peter also shares why he believes functional medicine could become part of the European healthcare system, especially if reimbursement shifts from visits and procedures toward actual health outcomes.

This episode covers:

• What 5,000+ patients taught him

• Why fasting insulin is often missed

• How root cause medicine could change care

Topics discussed:

00:00 Introduction
01:00 What FunMed does differently
02:00 Real-world data from 5,000+ patients
03:30 From CNS pharmacology to functional medicine
07:00 Root cause medicine vs symptom control
10:30 Precision health in Sweden and Germany
15:30 Why FunMed tests around 200 biomarkers
21:00 False positives and the problem with large panels
28:00 Fasting insulin and insulin resistance
31:00 Low-grade inflammation and gut health
35:30 Low-carb and ancestral nutrition
41:00 Vegan diets, nutrient deficiencies, and bio-individuality
49:30 Red meat, nutrition research, and epidemiology
56:00 Functional medicine and insurance coverage
59:00 Rapid fire: biomarkers, magnesium, carnivore diet, healthcare reform

Guest

Dr. Peter Martin

Physician, former CNS pharmacology researcher, founder of FunMed, and one of the leading voices trying to bring functional medicine and precision health into European healthcare.

Guest links

LinkedIn: https://www.linkedin.com/in/peter-martin-31b23342/
FunMed: https://www.funmed.se/?srsltid=AfmBOorlgUNnEK1ba7p_zIxug35sx3YMSq6PmYiufq6xJH1VAQ-EiQc0

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