Inflammation and the Leaky Gut Question

The intestinal barrier is real. Almost everything being sold to repair it is not.

Leaky gut has become the explanation for everything: fatigue, brain fog, joint pain, weight, mood, skin. A vague list of symptoms leads to an expensive test, which leads to a supplement stack and a diet with very little left in it.

This book separates the two things that get deliberately blurred. Intestinal permeability is a genuine physiological phenomenon that changes in real disease. That is not the same as a symptom checklist being able to diagnose coeliac disease, inflammatory bowel disease, an autoimmune condition or a food allergy.

You will find out what the barrier does, what the research has genuinely established, how the popular tests work and what their results can and cannot tell you, and which of the products marketed at you have anything behind them.

There is no protocol here and no supplement list. What there is instead is enough understanding to spend your money on better questions.

Book Four of The Gut Health Series. A sceptical, evidence-first look at the most oversold idea in gut health.