The Inside Passage

Twenty-Six Feet. Every Stop Matters. What Moves Through You Either Builds You or Breaks You.

Station 1 — The Oral Cavity — Where the Journey Begins

• Digestion does not start in the stomach — it starts here
• Chewing is the first act of medicine — skip it and every station downstream suffers
• Salivary amylase is already breaking down carbs before you swallow
• The oral microbiome is your body’s first security checkpoint
• Neglect this station and the damage travels — to the heart, the brain, and beyond

Station 2 — The Esophagus — The Corridor

• A ten-second transit — but the door at the bottom must close tight
• A leaking lower esophageal sphincter is not a heartburn problem — it is a lifestyle problem
• Acid coming up is not too much acid — it is acid in the wrong place
• This corridor was built for one-way traffic — keep it that way

Station 3 — The Stomach — The Acid Chamber

• pH of 1 to 3 — as acidic as battery acid — and that is exactly what you need
• Low stomach acid is epidemic — and most people are making it worse with antacids
• pylori lives silently in half the world’s population — most have no idea
• The stomach does not just digest food — it sterilizes it
• Suppress the acid long enough and protein digestion collapses system-wide

Station 4 — The Small Intestine — The Great Absorber

• Twenty-two feet — the most important real estate in your body
• Surface area of a tennis court when healthy — a postage stamp when damaged
• This is where your supplements either work or get wasted
• Leaky gut begins here — and from here it goes everywhere
• A compromised lining is not a gut problem — it is a whole-body problem

Station 5 — Liver & Gallbladder — The Processing Plant

• No bile — no fat digestion — no fat-soluble vitamins
• Everything absorbed from the gut goes through the liver first — it is the body’s filter
• A sluggish gallbladder is quiet until it is not — then it gets loud fast
• Bitter foods are the ancestral signal that gets bile moving — we stopped eating them

Station 6 — The Pancreas — The Enzyme Factory

• Without pancreatic enzymes, food passes through instead of feeding you
• Enzyme output declines with age — almost nobody addresses this
• The pancreas also runs blood sugar — two jobs, both critical, both neglected
• Processed food and chronic stress are the two fastest ways to wear this organ down

Station 7 — The Large Intestine — The Microbiome Metropolis

• Thirty-eight trillion residents — outnumber your own cells
• They make vitamins, regulate immunity, and wire directly into your brain
• Feed them fiber or feed the pathogens — there is no neutral choice
• A depleted microbiome does not just affect digestion — it affects your mood, your focus, your resilience
• This is where the Caveman diet pays its biggest dividend

Station 8 — The Exit Ramp — The Final Report Card

• What comes out is a direct readout of what went on above
• Type 4 on the Bristol Stool Scale is the target — smooth, complete, effortless
• Straining is not normal — it is a signal
• Transit time of 18 to 24 hours means the system is running on schedule
• If the exit ramp is struggling, do not treat the exit — investigate the route.

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The Bristol Stool Scale

The Bristol Stool Scale is a clinical chart developed at the University of Bristol in 1997. It categorizes human stool into seven types based on shape and consistency — giving both patients and clinicians a simple, standardized way to describe bowel health without guesswork.

 The seven types:

Type 1 — Separate hard lumps, like small stones. – Severe constipation.

Type 2 — Lumpy, sausage-shaped but hard. – Mild constipation.

Type 3 — Sausage-shaped with cracks on the surface. – Normal, borderline.

Type 4 — Smooth, soft, sausage or snake shape. – The target. Ideal.

Type 5 — Soft blobs with clear-cut edges. – Lacking fiber, moving too fast.

Type 6 — Fluffy, mushy pieces with ragged edges. – Mild diarrhea.

Type 7 — Entirely liquid, no solid pieces. – Severe diarrhea.

The clinical takeaway:

Types 1 and 2 — transit is too slow. Waste is sitting, water is being reabsorbed, and bacterial toxins are recycling back through the colon wall.

Types 6 and 7 — transit is too fast. Nutrients and water are being lost before absorption is complete.

Type 4 is the target every time. Consistent Type 4 means the route is running on schedule.