Gut lining & mucosal repair
One of 5 mechanistic pathways to 🩹 Heal an injury · 13 options
The gut is a connective-tissue injury most people never think of as one. Tight junctions, mucus layer and epithelial turnover are all repair processes, and they respond to the same logic — signal, substrate, and stop the ongoing insult.
A damaged barrier shows up as malabsorption before it shows up as symptoms. Low ferritin, B12 and folate together — with a reasonable diet — is an absorption pattern, not an intake one.
Complete Blood Count (CBC) with DifferentialFerritinVitamin B12Folate, Serumhs-CRP (High-Sensitivity C-Reactive Protein)Comprehensive Metabolic Panel (CMP)🌱 Gut Health & Absorption covers these in one panel →
What engages this pathway
Ordered by how directly each one acts on the mechanism above — never by how much trial evidence exists. Each links to its full breakdown with dosing, half-life and vendor.
💉 BPC-157 (inj/oral)
Originally isolated from gastric juice, and the gut is where its rodent evidence is strongest — it protects against NSAID damage and accelerates healing of experimental colitis and fistulae. Oral dosing is defensible here in a way it isn't for a tendon.
💉 Larazotide
A zonulin antagonist that directly tightens the junctions between enterocytes. It reached phase-3 in coeliac disease — the most literal 'leaky gut' drug that exists, and it was developed by people who don't use that phrase.
💉 KPV
Anti-inflammatory at the mucosa specifically, and orally stable enough to reach the colon. The standard partner for BPC-157 in gut protocols.
💉 GLP-2
Directly trophic to intestinal mucosa — increases villus height and crypt depth. Approved as teduglutide for short-bowel syndrome.
🧬 L-Glutamine
The preferred fuel of the enterocyte. Trials in critical illness and post-surgical patients show improved gut-barrier integrity; the everyday-bloating case is much weaker.
🧬 Zinc Carnosine
Japanese trials show it stabilises the gastric mucosa and reduces NSAID-induced permeability. The chelate matters — the carnosine carries the zinc to the damaged site.
🧬 Butyrate
The short-chain fatty acid colonocytes burn preferentially, and a direct regulator of tight-junction proteins. Supplying it directly is the shortcut when the fibre route isn't working.
🧬 DGL Licorice
Increases mucus secretion and mucosal blood flow. Deglycyrrhizinated so it doesn't raise blood pressure — the glycyrrhizin is the part that causes trouble.
🧬 Slippery Elm & Marshmallow Root
Demulcents that form a physical mucilage layer over irritated mucosa. Symptomatic and mechanically sensible.
🧬 Immunoglobulin (IgG) Concentrate
Serum-derived bovine IgG binds bacterial antigens and toxins in the lumen, reducing the immune load on the barrier. Real trial evidence in IBS-D and HIV enteropathy.
🧬 Colostrum
Contains IgG, lactoferrin and growth factors. Reduces exercise-induced intestinal permeability in athlete trials — a nice, specific, measurable result.
🧬 Aloe Vera
Inner-leaf gel improves ulcerative colitis and IBS symptom scores in small trials. Avoid whole-leaf preparations, which contain anthraquinone laxatives.
🧬 Mastic Gum
Has direct anti-H.-pylori activity in trials and improves functional dyspepsia. Treating the cause rather than coating the symptom.
The other 4 routes to heal an injury
Pick the pathway that matches where you are actually stuck. An appetite drug does nothing for someone who already undereats.
Want the protocols behind these?
Dosing schedules, stacking, cycle timing and Coach Cam's notes live inside the Academy — plus the full interactive Vault.
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Frequently asked questions
The gut is a connective-tissue injury most people never think of as one. Tight junctions, mucus layer and epithelial turnover are all repair processes, and they respond to the same logic — signal, substrate, and stop the ongoing insult.
13 options are mapped to this pathway in the Vault, including BPC-157 (inj/oral), Larazotide, KPV, GLP-2. They are grouped by the mechanism they act through rather than ranked by how much trial evidence exists — 10 carry clinical validation and 3 are mechanistic predictions.
A damaged barrier shows up as malabsorption before it shows up as symptoms. Low ferritin, B12 and folate together — with a reasonable diet — is an absorption pattern, not an intake one. The markers worth checking are Complete Blood Count (CBC) with Differential, Ferritin, Vitamin B12, Folate, Serum.
Unproven is not the same as ineffective. Of the 13 options on this pathway, 10 have clinical validation and 3 are graded theoretical — meaning the mechanism is sound but the specific human trial has not been run, which is true of a great deal of what works in this space. Nothing on this page is ordered by evidence tier, because sorting by trial count would bury the compounds you came looking for.