Deep Dives Gut and Immunity

An elimination that actually ends: structuring a food trial so it answers something

Learn how a food trial is built so that it produces an answer: why the reintroduction is the experiment, how the question and its threshold are fixed before day one, the three phases of low FODMAP and the one most people never leave, and the confounders that manufacture a false yes.

Written by a working longevity centre, not a marketplace

Reviewed by Team SOMA
Last updated August 2026 · English

What you'll be able to do

  • Fixing the question and its threshold before day one, rather than after
  • The three phases of low FODMAP, and the one most people never leave
  • How long is long enough, and how long has become too long
  • The confounders that manufacture a false yes
  • What a clean negative is worth, and why it is usually the more useful result

What's inside

Before you read

The deep reading

The case

Check yourself

In practice

Is this for you?

Who it's for

  • Anyone with a result in hand who wants the reasoning, not only the conclusion
  • People with no medical training - every technical term is explained the moment it appears
  • Practitioners who want the thinking behind a number rather than a protocol

What you need

  • No prior training. Every technical term is explained in plain words the first time it appears.
  • A willingness to read something twice.

About this Deep Dive

Most elimination diets never produce an answer, because the part that would have produced it never happens. The reintroduction is the experiment. Everything before it is setup.

What this covers

  • Fixing the question and its threshold before day one, rather than after
  • The three phases of low FODMAP, and the one most people never leave
  • How long is long enough, and how long has become too long
  • The confounders that manufacture a false yes
  • What a clean negative is worth, and why it is usually the more useful result

How it is built

Five parts, taken in order: a short orientation, the reading itself, one worked case, a check to see whether it landed, and a page on what changes once you have it. About forty minutes, and it is written to be read twice. There is no certificate here — that is what the Certified Programmes are for.

Who wrote it

SL
SOMA Longevity Sciences

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