TL;DR — Gut microbiome diversity declines with age; leaky barrier and endotoxin translocation drive inflammagingChronic low-grade inflammation that increases with age and damages tissues silently. Full glossary →. Diverse fiber (30+ plants/week) and fermented foods have the strongest human trial evidence. Track fiber grams, digestive symptoms, and hs-CRP — sulforaphane supports gut NRF2 as a secondary lever.
What this hallmark means
The gut hosts trillions of microbes that train immunity, produce short-chain fatty acids (SCFAs), and modulate systemic inflammation. Dysbiosis — loss of diversity, decline of SCFA producers, overgrowth of pro-inflammatory species — accelerates the gut-inflammaging axis.
The gut produces ~70% of systemic serotonin and influences NAD+ metabolism. Permeability ("leaky gut") lets LPS endotoxin hit TLR4, raising hs-CRP and amplifying nearly every other hallmark.
| Failure mode | What changes | What you feel |
|---|---|---|
| Diversity collapse | Fewer SCFA-producing taxa | Bloating, food sensitivities |
| Barrier leak | Zonulin ↑, LPS translocation | CRP drift without obvious cause |
| Pro-inflammatory overgrowth | Pathobiont expansion | GI distress, fatigue |
| Post-antibiotic wipe | Slow diversity recovery | Weeks of digestive instability |
Hallmark 11 · Dysbiosis
An amplifier hallmark connecting to chronic inflammation (H10), nutrient sensing (H12), and altered signaling (H9). TNiC compound coverage is lower (40%) — food first.
Why this matters for your protocol
No NRF2A protein that turns on 200+ antioxidant and detox genes when activated. Full glossary → stack fully compensates for 15 g/day fiber and daily ultra-processed food. Fix the garden before adding fence paint.
Intervention hierarchy (evidence-weighted):
- Diverse fiber / prebiotics — 30+ plant species per week; 30–40 g fiber/day
- Fermented foods daily — Stanford trial: 6 servings/day ↑ diversity, ↓ inflammatory markers (PMID 34432955)
- Sulforaphane (gut NRF2) — NRF2 in gut epithelium strengthens barrier (preclinical + mechanistic)
- Targeted probiotics — strain-specific (Akkermansia, B. longum); pilot data only
- Microbiome testing — Viome, Thorne, or clinical metagenomics for baseline
Wastyk et al. Stanford 2021 (PMID 34432955): high-fermented-food diet increased microbiome diversity and decreased 19 inflammatory proteins in healthy adults over 10 weeks. Fiber diversity outperforms single-strain probiotics in replication.
Practical intervention map
| Lever | Mechanism | Evidence | TNiC resource |
|---|---|---|---|
| 30+ plants/week | SCFA producer feed | Tier A | Nutrition |
| Fermented foods 2–6/day | Diversity + immune training | Tier A | Nutrition |
| Fiber 30–40 g/day | Prebiotic substrate | Tier A | Nutrition |
| Sulforaphane AM | Gut epithelial NRF2 | Tier B | Sulforaphane |
| Alcohol reduction | Barrier preservation | Tier A | Chronic inflammation |
← Swipe for more columns →
Your 90-day dysbiosis protocol
Weeks 1–4: Log daily fiber grams. Add 1 new plant species per week. Baseline hs-CRP and digestive symptom score.
Weeks 5–8: Ramp fermented foods to 2–4 servings/day (yogurt, kefir, kimchi, sauerkraut). Target 30 g fiber/day.
Weeks 9–12: If CRP >1.0 and GI stable, add sulforaphane via NRF2 Triad for barrier + systemic NRF2.
Decision point at week 12: Digestive score ↑ and CRP ↓30% → continue food protocol. Flat → consider microbiome test; avoid random multi-strain probiotics.
Which gut path first?
Fiber intake below 25 g/day or <15 plant species/week?
Nutrition fiber sprint 4 weeks — no supplements until food foundation set
node | Active IBD flare, severe IBS-D, or recent antibiotics (<4 weeks)?
redflag | Gastroenterologist-guided protocol — fermented foods may worsen some flares
node | hs-CRP >1.0 with bloating?
Fermented food ramp + sulforaphane week 8
Maintain food diversity; optional microbiome baseline test
Blood in stool, unintentional weight loss, or fever — colonoscopy workup before longevity protocols
Educational decision aid — a way to organize the evidence, not a prescription. Doses and timing shown are those used in studies; confirm anything you act on with a clinician or pharmacist.
What to measure
| Signal | Type | Frequency | Success looks like |
|---|---|---|---|
| Fiber intake (g) | Diet log | Daily | 30–40 g/day |
| Plant species count | Diet log | Weekly | 30+ per week |
| hs-CRP | Lab | Baseline, 12 wk | <1.0 mg/L |
| Digestive symptom score | Subjective | Daily | ↓ bloating, regularity |
| Zonulin / calprotectin | Lab (optional) | Baseline, 12 wk | Trending down if elevated |
← Swipe for more columns →
Fiber (g/day)
<20
Fermented servings/day
0
Digestive score (1–10)
≥6
hs-CRP (mg/L)
>1.0
Fiber (g/day)
30–40
Fermented servings/day
2–6
Digestive score (1–10)
≤3
hs-CRP (mg/L)
<1.0
Track gut-inflammaging markers
Log hs-CRP at baseline and week 12; optional zonulin or calprotectin if barrier leak suspected.
Open Labs hubRed flags — when to pause or escalate
Stop and consult before intensifying
- Blood in stool, anemia, or unexplained weight loss — rule out malignancy or IBD before fermented food ramps
- Active IBD flare (Crohn's, UC) — high-fiber and fermented protocols need gastroenterologist tailoring
- SIBO with severe bloating on fermented foods — diagnose and treat overgrowth first
Synergies worth knowing
| Stack | Covers | Best for |
|---|---|---|
| Nutrition fiber protocol | Prebiotic foundation | Everyone — start here |
| NRF2 Triad | Barrier + systemic inflammation | CRP elevated after food sprint |
| Chronic inflammation | LPS → CRP amplifier | Gut-driven inflammaging |
Build your stack
Enable nutrition pillar in Stack Architect — dysbiosis hallmark scores 2× on fiber compliance vs supplement legs.
Open Stack ArchitectPersonal results template
My dysbiosis log
| Date | Week | Fiber (g) | Plants (species/wk) | Fermented (svgs/day) | Digestive (1–10) | hs-CRP | Notes |
|---|---|---|---|---|---|---|---|
| YYYY-MM-DD | 0 | — | — | — | — | — | Baseline |
| YYYY-MM-DD | 5 | — | — | — | — | — | Fiber ramp |
| YYYY-MM-DD | 12 | — | — | — | — | — | Primary endpoint |
← Swipe for more columns →
Personal response criteria: - Meaningful: 30 g fiber + 30 plants/week sustained + digestive score ≤3 - Plateau: Microbiome test before random probiotics - Adverse: Worsening diarrhea, pain, or blood → stop fermented ramp, physician consult
Further reading
- Wastyk et al. 2021 (PMID 34432955) — fermented foods Stanford RCT
- Sonnenburg & Sonnenburg — fiber and microbiome diversity framework
- Chronic inflammation — gut-LPS → CRP pathway
References
Links open PubMed. TNiC does not sell supplements; citations support education, not medical advice.