The Knowledge
Index.
Every entry in the GutIQ research archive — patterns, foods, supplements, conditions, diagnostics, and reference material — drawn from the same fifteen-year clinical evidence base used across the platform. Filterable, searchable, cross-referenced.
GutIQ Framework
22 entriesEnvironmental & Seasonal Overlay
Complete guide to the environmental and seasonal gut overlay: mold and CIRS spectrum, seasonal allergy-gut connection, oral allergy syndrome, travel disruption, climate sensitivity, and structured environmental triggers protocols.
Read entryGas-Dominant Overlay
Complete guide to the gas-dominant gut overlay: causes of excess bloating and gas, SIBO/IMO spectrum, breath testing, food triggers, supplements, and structured protocols to reduce fermentation overdrive.
Read entryGut-Brain Dominant Overlay
Complete guide to the gut-brain dominant overlay: nervous-system-driven gut symptoms, vagal tone, gut-directed hypnotherapy, CBT for IBS, breathwork, adaptogens, and evidence-based gut-brain protocols.
Read entryHormonal/Cycle-Reactive Overlay
Complete guide to the hormonal/cycle-reactive gut overlay: estrogen/progesterone effects on motility, PMS gut symptoms, endometriosis and PCOS overlap, perimenopause and menopause shifts, cycle-mapped supplement protocols.
Read entryImmune-Reactive Overlay
Complete guide to the immune-reactive gut overlay: food sensitivities, mast cell activation, histamine intolerance, MCAS recognition, DAO enzyme, quercetin protocols, and when to escalate care.
Read entryMotility-Impaired Overlay
Complete guide to the motility-impaired gut overlay: MMC dysfunction, gastroparesis spectrum, slow and erratic transit, neurological and metabolic causes, prokinetic protocols, and recurrence prevention.
Read entryVariable Pattern Overlay
Complete guide to the variable pattern gut overlay: alternating constipation and diarrhea (IBS-M), oscillating motility, mixed methane/hydrogen SIBO, structured tracking and middle-ground stabilization protocols.
Read entryBalanced / Resilient
Explore the Balanced/Resilient gut pattern: why no symptoms does not mean optimal, hidden vulnerabilities, prevention strategies, and peak gut optimization.
Read entryFast Transit
Explore fast transit diarrhea: causes, 20+ symptoms, GutIQ scoring, food strategies, supplements, a 7-day meal plan, and evidence-based recovery protocols.
Read entryFat / Bile Sensitive
Understand fat and bile sensitivity: causes, 20+ symptoms, GutIQ scoring, food strategies, supplements like ox bile, a 7-day meal plan, and recovery steps.
Read entryFermentation Sensitive
Discover the fermentation sensitive gut pattern: FODMAP triggers, bacterial overgrowth signs, bloating relief strategies, and a science-backed recovery plan.
Read entryInflammatory / Leaky Prone
Understand the inflammatory leaky-prone gut pattern: intestinal permeability, immune activation, food sensitivities, and an evidence-based healing protocol.
Read entryLow-Diversity / Fragile
Explore the Low-Diversity gut pattern: narrow microbial ecosystems, diet-driven fragility, and a complete protocol to rebuild diversity and resilience.
Read entryMeal-Timing Sensitive
Understand the meal-timing sensitive gut pattern: how irregular meals disrupt motility, impair the migrating motor complex, and trigger digestive symptoms.
Read entryProtein Heavy / Fiber Poor
Discover how a high-protein, low-fiber diet disrupts your gut. Learn symptoms, root causes, food strategies, and a science-backed recovery plan from GutIQ.
Read entrySlow Transit
Understand slow transit constipation: causes, 20+ symptoms, GutIQ scoring, food strategies, supplements, a 7-day meal plan, and evidence-based recovery steps.
Read entryStress-Reactive
Understand the Stress-Reactive gut pattern: how cortisol disrupts digestion, triggers anxiety-linked flares, and evidence-based strategies to restore calm.
Read entryUpper GI / Reflux
Explore the upper GI reflux pattern: acid reflux, nausea, early fullness, hypochlorhydria, belching, LPR throat irritation, and evidence-based recovery.
Read entryVisceral Sensitivity
Understand visceral hypersensitivity: why normal digestion feels painful, central sensitization, 20+ symptoms, food strategies, and evidence-based recovery.
Read entryFiery / Reactive
Learn about the Fiery / Reactive gut archetype: inflammatory triggers, rapid transit, and a complete protocol to calm your gut and reduce flare-ups.
Read entryRestless / Erratic
Discover the Restless / Erratic gut archetype: variable symptoms, stress-driven flares, and evidence-based strategies to stabilize your digestion naturally.
Read entrySluggish / Stagnant
Explore the Sluggish / Stagnant gut archetype: slow motility, bloating, and a step-by-step plan to restore movement and energy to your digestive system.
Read entryFoods & Nutrition
12 entriesFoods for Balanced & Resilient
Comprehensive food guide for the balanced/resilient gut pattern: 30+ foods to prefer, polyphenol stacks, fermented rotation, 7-day optimization meal plan, and travel-resilience tactics.
Read entryFoods for Fast Transit
The complete food guide for fast transit and diarrhea-prone gut: 30+ stabilizing foods, foods to limit and avoid, the WHO ORS recipe, a 7-day low-FODMAP stabilizing meal plan, and reintroduction protocols.
Read entryFoods for Fat / Bile Sensitive
Comprehensive food guide for fat / bile sensitive gut: 25+ foods to prefer with fat-gram content, fat-tolerance ladder, 7-day low-fat meal plan, smart swaps, restaurant scripts, and bile-supportive cooking methods.
Read entryFoods for Fermentation Sensitive
Comprehensive low-FODMAP food guide for fermentation sensitive gut: 30+ foods to prefer, exact serving sizes, 7-day meal plan, cooking methods, and reintroduction protocol.
Read entryFoods for Inflammatory / Leaky Gut
Evidence-based food guide for inflammatory and leaky gut patterns: 25+ barrier-supportive foods, foods to avoid, a 7-day meal plan, elimination protocol, and FAQ on gluten, dairy, and nightshades.
Read entryFoods for Low Diversity
Comprehensive food guide for rebuilding gut microbial diversity: the 30-plants-per-week framework, prebiotics, polyphenols, fermented foods, 7-day meal plan, and a practical diversity scorecard.
Read entryFoods for Meal-Timing Sensitive
Comprehensive circadian-aligned eating guide for meal-timing sensitive gut: when to eat matters as much as what. 20+ foods to prefer, 7-day TRE meal plan, eating window protocols, shift-work and travel strategies.
Read entryFoods for Protein-Heavy / Fiber-Poor
Comprehensive food guide for the protein-heavy/fiber-poor (PF) gut pattern: 30+ high-fiber foods with gram counts, 7-day rebalanced meal plan, 14-day fiber ramp protocol, and cooking methods.
Read entryFoods for Slow Transit
The complete food guide for slow transit constipation: kiwi, prunes, psyllium, ground flax, magnesium-rich foods, a 7-day high-motility meal plan, foods to avoid, and clinical evidence.
Read entryFoods for Stress Reactive Gut
Comprehensive food guide for the stress reactive gut pattern: how cortisol affects digestion, 30+ foods that calm the gut-brain axis, blood-sugar stabilizing meals, 7-day meal plan, and a 28-day reset.
Read entryFoods for Upper-GI Reflux
Comprehensive food guide for upper-GI reflux, GERD, and LPR: 25+ foods to prefer with mechanisms, trigger lists, 7-day reflux-calming meal plan, cooking methods, and lifestyle adjuncts.
Read entryFoods for Visceral Sensitivity
Comprehensive food guide for visceral hypersensitivity: 25+ gut-calming foods to prefer, low-histamine and low-irritant choices, 7-day meal plan, mindful eating protocols, and pain-quieting cooking methods.
Read entrySupplements & Probiotics
12 entriesSupplements for Balanced/Resilient
Evidence-based supplement protocol for the Balanced/Resilient gut pattern: daily multispecies probiotic, polyphenols, omega-3, vitamin D, fiber diversity, antibiotic recovery, travel and stress-resilience stacks.
Read entrySupplements for Fast Transit
Evidence-based supplement guide for fast-transit / IBS-D / chronic loose stool: psyllium, S. boulardii, peppermint oil, bile-acid binders, rifaximin, plus stacking, dosing, and cost tiers.
Read entrySupplements for Fat/Bile Sensitive
Evidence-based supplement protocol for fat/bile-sensitive gut: ox bile extract, digestive lipase enzymes, TUDCA, phosphatidylcholine, taurine, choline, betaine HCl considerations, and severe bile-insufficiency stacks.
Read entrySupplements for Fermentation Sensitive
Comprehensive supplement protocol for the fermentation sensitive (FS) gut pattern: tiered stacks, dose, timing, mechanism, evidence quality, drug interactions, SIBO protocol, and cost-based recommendations.
Read entrySupplements for Inflammatory / Leaky Gut
Evidence-based supplement protocol for inflammatory / leaky-gut prone (IL) pattern: L-glutamine, zinc carnosine, bovine colostrum, vitamin D, omega-3, curcumin, SBI, butyrate. Doses, timing, stacking, cost tiers, 8-week protocol.
Read entrySupplements for Low Diversity
Evidence-based supplement guide for the low-diversity gut pattern: PHGG, acacia fiber, Akkermansia muciniphila, spore-based probiotics, butyrate, polyphenols. Tiered protocol, dosing, brands, and a 12-week diversity-rebuild plan.
Read entrySupplements for Meal-Timing Sensitive
Evidence-based supplement protocol for meal-timing-sensitive gut: bitters before meals, ginger and Iberogast prokinetics, gut-specific melatonin, circadian B6, MMC support, time-restricted feeding adjuncts.
Read entrySupplements for Protein-Heavy Fiber-Poor
Evidence-based supplement guide for protein-heavy fiber-poor (PF) gut: PHGG, acacia, psyllium, butyrate, multistrain probiotics, resistant starch, polyphenols, and a 12-week fiber-rebuild + microbiome reseed protocol.
Read entrySupplements for Slow Transit
Evidence-based supplement protocol for slow-transit constipation: magnesium dosing, psyllium ramp, kiwi, prunes, prokinetics, what to avoid, stacking schedule, and severe-case protocol.
Read entrySupplements for Stress Reactive
Comprehensive supplement protocol for the stress reactive (SR) gut pattern: tiered stacks targeting vagal tone, HPA axis, and visceral hypersensitivity, with dose, timing, evidence quality, drug interactions, and cost-tier recommendations.
Read entrySupplements for Upper GI/Reflux
Evidence-based supplement protocol for upper GI / reflux pattern: DGL licorice, melatonin for GERD, alginate barriers, zinc carnosine, slippery elm, marshmallow root, d-limonene, and PPI-taper strategies.
Read entrySupplements for Visceral Sensitivity
Evidence-based supplement protocol for visceral hypersensitivity / gut pain: enteric-coated peppermint oil, Bifidobacterium infantis, Iberogast, L-glutamine, saffron, PEA, magnesium glycinate, vagal tone support.
Read entryDiagnostics & Symptoms
2 entriesBlack Stool
Complete guide to black stool: melena from upper GI bleeding (peptic ulcer, varices, malignancy), benign causes (iron, bismuth, dark foods), emergency decision framework, testing, and treatment.
Read entryPale Stool
Complete guide to pale, light-colored, or clay-colored stool: causes from bile insufficiency to biliary obstruction, when to see a doctor, testing, dietary considerations, and how it maps to gut health patterns.
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Every entry in this index has been reviewed by a member of the GutIQ Clinical Working Group and cross-referenced against the same evidence base described in our methodology.
Stale entries are flagged for quarterly re-review. Superseded recommendations are explicitly withdrawn rather than silently edited. Last index refresh: April 2026.