Free Starter Guide

The 30-Day Gut Reset:
A Science-Backed Roadmap

Three tools that turn gut health theory into a practical daily protocol — without supplements, elimination diets, or expensive testing.

Part 1 of 3

Gut Health Self-Assessment Checklist

Tap each symptom you've experienced in the past 30 days. Your score points to where to focus first.

Digestion & Motility

  • Bloating after most meals (not just large ones)
  • Constipation — less than 1 bowel movement per day
  • Loose stools or urgency more than 2x per week
  • Visible undigested food in stool
  • Excessive gas, especially in the afternoon/evening
  • Stomach pain or cramping not linked to specific foods

Systemic Signals (Beyond the Gut)

  • Skin issues: acne, eczema, rosacea, or persistent dryness
  • Brain fog: difficulty concentrating in the afternoon
  • Mood instability, anxiety, or low motivation without clear cause
  • Fatigue that doesn't improve with sleep
  • Frequent colds or slow recovery from illness
  • Food sensitivities that seem to be increasing over time
Symptoms checked: 0 / 12

Score Interpretation

Symptoms checkedPriorityWhere to start
0–2MaintenancePart 3 (4-week protocol)
3–5ModeratePart 2 (food table) first
6+SignificantStart Part 2, consider GI referral

Part 2 of 3

The Gut-Microbiome Food Reference Table

Ranked by prebiotic fiber content and research quality for microbiome diversity. Prioritize the top tier daily — these are the foods your beneficial bacteria eat.

Tier 1 — High-Impact Daily Targets

Food Prebiotic type Daily serving Evidence
Jerusalem artichoke Inulin (highest density) 60–80g ★★★★★
Chicory root / radicchio Inulin + FOS 1 cup raw ★★★★★
Garlic (raw) FOS + allicin 1–2 cloves ★★★★★
Onion (raw) Quercetin + FOS ½ medium ★★★★★
Leek Inulin 1 stalk ★★★★★
Asparagus Inulin + FOS 6 spears ★★★★★

Tier 2 — Fermented Foods (Live Bacteria)

Food Strains present Notes Evidence
Kimchi (traditional) Lactobacillus spp. Must be refrigerated, unpasteurized ★★★★★
Kefir (whole milk) 30–50 strains Most diverse commercial option ★★★★★
Miso (unpasteurized) A. oryzae + LAB Don't boil — kills bacteria ★★★★★
Sauerkraut (raw) Lactobacillus plantarum Avoid heat-treated jarred versions ★★★★★
Greek yogurt (live cultures) L. bulgaricus + S. thermophilus Look for "live active cultures" label ★★★★★

The 2021 Stanford study (Sonnenburg lab, Cell) found fermented foods increased microbiome diversity more effectively than a high-fiber diet alone in a 10-week controlled trial.

Foods That Actively Harm Gut Diversity — Limit These

FoodMechanism of harmImpact
Emulsifiers (CMC, Polysorbate 80) Disrupts mucus layer, enables bacterial translocation High
Refined sugar (>25g/day) Feeds Firmicutes → dysbiosis, systemic inflammation High
Artificial sweeteners (aspartame, saccharin) Alters bile acid composition, damages microbiome High
Alcohol (>2 drinks/day) Increases intestinal permeability ("leaky gut") Moderate
Processed red meat (daily) TMAO production via gut bacteria → cardiovascular risk Moderate
Part 3 of 3
Ready to fix this at the root?
The 30-Day Gut Reset is the full day-by-day protocol — mechanisms, dosed repair steps, a diagnostic chapter, food/swap tables, and a maintenance plan, built from the same research on this page.
Get the Gut Reset → $19

The 4-Week Gut Reset Protocol

Each week adds one layer. By week 4, you'll have a complete daily gut health practice that takes under 10 minutes to maintain. Do not skip ahead — the order matters for adaptation.

Week
01
Baseline Assessment + Remove the Worst Offenders
Complete Part 1 checklist. Stop consuming emulsifiers (check ingredient labels — CMC and Polysorbate 80 are in most ice creams, salad dressings, and processed baked goods). Swap artificial sweeteners for honey or nothing. Goal: stop the bleeding before you rebuild.
Week
02
Add One Prebiotic Food Daily
Choose one Tier 1 food and eat it daily — raw garlic in salad dressing, raw onion in salads, asparagus as a side. Start small (half serving) if you're sensitive. Expect increased gas in days 3–5 as bacteria adapt. This is normal and passes. Do not supplement fiber yet — food first.
Week
03
Add One Fermented Food Daily
Add 2–3 tablespoons of kimchi, sauerkraut, or kefir to one meal daily. Non-negotiable: must be unpasteurized. This is where microbiome diversity increases rapidly. If you choose kefir, drink it with your prebiotic food — bacteria + their food source at the same time is called synbiotic feeding.
Week
04
Evaluate + Add Targeted Probiotic if Needed
Re-score Part 1. Most people see 30–50% symptom reduction by week 4 from diet alone. If symptoms remain, consider a targeted probiotic. Seed DS-01 (Bifidobacterium + Lactobacillus strains, delayed-release) is the most rigorously studied option for general microbiome support. Do not start probiotics before completing weeks 1–3 — they won't work without prebiotics present.

When to Talk to a Doctor

This protocol is for general gut wellness, not diagnosis. See a GI specialist if you have: blood in stool, unexplained weight loss, symptoms that began after a specific illness, family history of IBD or colorectal cancer, or symptoms that worsen after starting this protocol. A functional medicine GI can order a comprehensive stool analysis (ROMA or Doctor's Data) to identify specific dysbiosis.

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Science-backed gut microbiome research, probiotic comparisons, and the latest on the gut-brain axis — translated into plain language.

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For educational purposes only. Not medical advice.

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