You paid for the leaky gut panel, the numbers came back abnormal, and you still feel the same. Shiv K. Goel, an internal medicine and functional medicine physician, explains why no single marker can tell you what is wrong with your gut, what the tests are actually good for, and how he finds the upstream driver keeping the inflammation going.

⏱️ Chapters:
0:00 Introduction
0:21 Why more testing does not mean more answers
1:05 The teacher who was scoped twice and still sick
2:08 Leaky gut is not a diagnosis
2:55 Why GI doctors dismiss the term
4:06 What the scope could not tell him
5:06 The cortisol pattern behind her gut symptoms
7:04 Why IBS is not much of a diagnosis either
7:37 What he fixes before reaching for supplements
9:03 Chronic stress does not stop at the gut
10:21 The leaky gut test that measures the wrong protein
11:51 The real reason he still orders the test
12:42 The cholesterol number most doctors check is the wrong one
13:39 Feeling better does not mean the problem is gone
14:14 Take home messages

About this episode:
Shiv K. Goel is an internal medicine and functional medicine physician who sees two kinds of patients: the ones who arrive convinced that more testing means more answers, and the ones who have never heard the term leaky gut at all. He opens with a 36-year-old teacher who came in about migraines and weight, already carrying an irritable bowel syndrome label and two scopes showing diffuse inflammation, and explains why none of that told anyone what was actually driving her symptoms. Goel argues that leaky gut is not a diagnosis but a physiologic response, which is exactly why many gastroenterologists dismiss the term, and why a positive panel is a starting point rather than an answer. He walks through what he checked next, including a flat cortisol curve and a dysregulated HPA axis, and what he treated first: sleep, light, breathing, and stress reduction before any gut repair supplement. He is unusually candid about the tests themselves, granting that there is no single best marker and that commercial zonulin assays often measure haptoglobin 2 or C3 rather than the pre-haptoglobin 2 that zonulin actually is. His defense of testing is not that the numbers are definitive but that patients stay with a plan they can see measured. He compares it to serum creatinine standing in for kidney function, or a routine lipid panel standing in for cardiovascular risk when Apo B is the better marker. His closing message to clinicians is to treat the identified driver first, whether that is gluten elimination in celiac disease, disease-specific therapy in inflammatory bowel disease, or stress reduction in stress-driven dysbiosis, rather than defaulting to a generic gut repair stack.

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