Gut barrier and inflammation protocols 6-week protocol 11 food prescriptions

Low Secretory IgA 6-Week Mucosal Immunity Protocol

Secretory IgA (sIgA) is the gut's primary antibody and the first line of mucosal immune defense. Low stool sIgA usually indicates depleted mucosal immunity, with chronic stress and poor sleep as the two largest drivers. Adults produce several grams of sIgA per day and it responds reliably to lifestyle inputs within 4 to 6 weeks. This protocol attacks the problem from three angles. Phase 1 addresses the upstream drivers (stress, sleep, alcohol) and starts colostrum, which has the strongest single-food evidence for raising sIgA. Phase 2 adds rotating fermented foods to expose the gut to diverse microbial antigens that train sIgA production. Phase 3 establishes the maintenance fermented food rotation and stress-management practices that prevent the underlying drop from recurring.

Who this protocol is for

Adults with low or borderline-low Secretory IgA on a stool test, especially when paired with frequent infections, recurrent yeast, or post-illness fatigue that lingers.

What to expect, week by week

  1. 1 Week 1 to 2: Sleep often improves within the first week (a leading indicator of sIgA recovery).
  2. 2 Week 3 to 4: Frequency of mild infections drops. Recovery from minor illness speeds up.
  3. 3 Week 5 to 6: Energy stabilizes, food sensitivities ease.
  4. 4 Retest at 8 to 12 weeks. sIgA is one of the more responsive markers.

The 6-week food plan

Built from the protocol for Secretory IgA, the primary marker behind this condition. Phase 1 is partially visible. The full plan with exact quantities unlocks when you upload your stool test PDF.

Phase 1 Weeks 1 & 2 · Remove and Reduce
  • Bovine colostrum powder See your personalized dose
  • Kefir (full-fat, plain) See your personalized dose
Phase 2 Weeks 3 & 4 · Seed and Feed Locked
Phase 3 Weeks 5 & 6 · Build and Sustain Locked

Unlock the full personalized version

This is the off-the-shelf protocol for Low sIgA protocol. Upload your stool test PDF and we will build the version that handles your specific marker pattern (most people have 4 to 7 abnormal markers, not just one), with conflicts resolved and a grocery list ready to send to Instacart or Kroger.

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The markers behind this protocol

The primary driver is Secretory IgA. Click through for what the result means in detail. Supporting markers below often co-occur and inform the full protocol.

Primary driver Low Secretory IgA Supporting marker Elevated Zonulin Supporting marker Elevated Candida species Supporting marker Low Akkermansia muciniphila

Common mistakes practitioners see

  • Treating low sIgA only with supplements while ignoring sleep and stress (the upstream drivers).
  • Using a single fermented food daily instead of rotating 3 to 5 different ones (diversity matters).
  • Stopping colostrum after symptoms improve. Tapering rather than stopping holds the gain better.
  • Confusing high sIgA with low sIgA. Both are flags. Follow the test result, not the assumption.

When to escalate

  • Recurrent serious infections (sinus, lung, skin) suggesting broader immune dysfunction.
  • Persistent fevers without clear cause.
  • Suspected primary immune deficiency (refer to immunology).

These signs mean stop the protocol and see a clinician. The protocol is not designed to manage acute or severe disease.

Tests that produce the markers driving this protocol

Diagnostic Solutions Laboratory · Upload supported GI-MAP Genova Diagnostics · Upload supported Genova GI-Effects Doctor's Data Doctor's Data GI360

Frequently asked questions

Do I need to do the full 6 weeks?
Yes. Symptom changes show up within 2 to 3 weeks for most people, but the underlying microbiome shift takes the full duration. Stopping at week 2 because you feel better is the single most common reason protocols fail.
Can I do this protocol without a stool test?
You can run the off-the-shelf version of this protocol without a test. The trade-off: you lose the personalization that addresses your other markers. Most people on a stool test have 4 to 7 abnormal markers, not just one. The personalized version sequences interventions based on which combinations are present.
What if I have multiple findings on my test?
Almost everyone does. Upload your full PDF instead of running this single-condition protocol. The personalized output handles marker conflicts (for example, fiber that helps one marker can worsen another) and sequences phases in the right order across all of them.
When should I retest?
8 to 12 weeks after starting the protocol is the validated retest window for most stool tests. Earlier than that, the markers have not had time to change. Later than that, you lose the ability to attribute changes to the protocol vs. drift.
Should I work with a practitioner alongside this?
For protocols involving parasites, H. pylori, or significant inflammation (Calprotectin above 120 µg/g), yes. For dysbiosis, low diversity, or low SCFA findings, dietary protocols can be self-directed for most people. The 'when to escalate' section above lists the specific signs that mean stop and see a clinician.

Get the version built for your full report

This protocol assumes a single primary driver. Most stool tests show 4 to 7 abnormal markers. Upload your PDF and get the version that handles all of them, in the right order.

Upload your lab PDF