
Fix the Terrain, Fix Everything: Matthew Castanho on Why Gut Health Starts With What's Living Inside You
Gut dysfunction is most often caused by microbial imbalances — overgrowths or missing beneficial species — not just dietary triggers.
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Root-cause protocols, lab guides, and evidence-based insights — so you can take charge of your health.

Gut dysfunction is most often caused by microbial imbalances — overgrowths or missing beneficial species — not just dietary triggers.

Gut healing begins with foundations — sleep, stress management, hydration, and how you eat — before supplements or elimination diets.

Fertility is never truly "unexplained" — it reflects the body's assessment of whether it has sufficient resources to support pregnancy, and the root causes are always identifiable with thorough investigation

Gut health assessment must include a thorough history of past and present medications — antibiotics, NSAIDs, birth control, and acid blockers all reshape the microbiome in specific, lasting ways

Effective diabetes management starts with lifestyle and habits, not food rules — building rapport and trust comes before dietary recommendations

Higher HRV reflects a resilient autonomic nervous system and is associated with lower cardiovascular risk, less inflammation, and longer life

Magnesium deficiency is strongly associated with increased anxiety, and correcting deficiency often provides meaningful relief.

Weight loss resistance is often driven by dysfunction in the liver, gut, adrenals, thyroid, or immune system — not insufficient willpower

Effective weight management starts with a comprehensive intake assessment covering hormones, labs, body composition, existing conditions, and medications

Autoimmune disease often starts with dysbiosis — persistent infections that push the immune system into a state of chronic overdrive

Pain doesn't mean you're broken — the body is often adapting to a new or unfamiliar stimulus, not signaling structural damage

The craniocervical junction — where the atlas and axis vertebrae meet the skull — is a commonly overlooked source of chronic headaches and migraines