IBS Management, Reimagined
Smart gut diary with FODMAP tracking. Bristol Stool Scale logging. Food-symptom timing analysis. Smart trigger detection. Gastroenterologist-ready reports that make your data impossible to dismiss.
Built for the 25-45 million Americans living with Irritable Bowel Syndrome — the #1 reason for GI referrals — across all subtypes: IBS-C, IBS-D, and IBS-M.
25-45M
Americans affected
#1
Reason for GI referrals
3
Primary subtypes (C/D/M)
What is IBS?
Irritable Bowel Syndrome is a functional gastrointestinal disorder — meaning the gut looks structurally normal on tests, but it doesn't function normally. The gut-brain connection is disrupted: signals between your brain and intestines are amplified, mistimed, or misinterpreted.
IBS is not "all in your head." It involves real changes in gut motility, visceral hypersensitivity (the gut feels pain at lower thresholds than normal), altered gut microbiome composition, and low-grade immune activation. Research increasingly points to the gut-brain axis — a bidirectional communication network between your central and enteric nervous systems.
Rome IV Diagnostic Criteria
Recurrent abdominal pain at least 1 day/week in the last 3 months, associated with 2+ of:
- 1. Related to defecation
- 2. Associated with a change in stool frequency
- 3. Associated with a change in stool form (appearance)
Gold Standard Intervention
The low FODMAP diet (Fermentable Oligosaccharides, Disaccharides, Monosaccharides, And Polyols) is the most evidence-backed dietary intervention for IBS, with 50-80% of patients reporting significant symptom improvement. It involves a 3-phase approach: elimination, reintroduction, and personalization.
Most IBS patients cycle through years of trial-and-error before finding what works for their gut. Good data — specifically a detailed food-symptom diary — changes that timeline. That's what Leo is building.
3 Primary Subtypes
IBS is classified by predominant stool pattern using the Bristol Stool Scale. Your subtype determines which treatments are most likely to help.
IBS-C
Constipation
IBS-D
Diarrhea
IBS-M
Mixed
The Numbers
IBS Subtypes
IBS isn't one-size-fits-all. Your subtype determines your treatment strategy. Leo will track your stool patterns to help identify and monitor your specific subtype over time.
IBS-C (Constipation)
Predominant constipation with hard/lumpy stools (Bristol Types 1-2). Straining, infrequent bowel movements, and abdominal discomfort relieved by defecation.
Common treatment: Fiber supplementation, osmotic laxatives (MiraLAX), linaclotide, lubiprostone
IBS-D (Diarrhea)
Predominant diarrhea with loose/watery stools (Bristol Types 6-7). Urgency, frequent bowel movements, and post-meal rushing to the bathroom.
Common treatment: Loperamide (Imodium), rifaximin, eluxadoline, bile acid sequestrants
IBS-M (Mixed)
Alternating between constipation and diarrhea. Unpredictable stool patterns make management particularly challenging. The most frustrating subtype.
Common treatment: Targeted treatment based on predominant symptom, low FODMAP diet, antispasmodics
IBS-U (Unsubtyped)
Meets IBS criteria but stool pattern doesn't fit neatly into C, D, or M categories. Symptoms may shift over time.
Common treatment: Symptom-based management, dietary modification, stress reduction
Post-Infectious IBS (PI-IBS)
Develops after a bout of gastroenteritis (food poisoning, traveler's diarrhea). Gut microbiome disruption and low-grade inflammation persist long after infection clears.
Common treatment: Probiotics, rifaximin, dietary modification, time (some cases resolve within 1-2 years)
SIBO-Related IBS
Small Intestinal Bacterial Overgrowth — bacteria that belong in the colon migrate to the small intestine, causing bloating, gas, and altered motility. Common IBS overlap.
Common treatment: Rifaximin antibiotic course, elemental diet, prokinetics, SIBO-specific diet
Subtypes can shift over time. Many patients alternate between IBS-C and IBS-D patterns, which is why consistent tracking matters.
Track Every IBS Symptom
IBS symptoms extend far beyond the gut. Leo will track GI and non-GI symptoms together, revealing connections your doctor needs to see.
GI Symptoms
- Abdominal pain / cramping
- Bloating & distension
- Excessive gas / flatulence
- Diarrhea
- Constipation
Stool Changes
- Bristol Types 1-2 (hard/lumpy)
- Bristol Types 6-7 (loose/watery)
- Mucus in stool
- Urgency / rushing
- Incomplete evacuation
Non-GI Symptoms
- Chronic fatigue
- Brain fog
- Headaches
- Back pain
- Fibromyalgia overlap
Meal-Related
- Post-meal abdominal pain
- Early fullness / satiety
- Nausea
- Acid reflux / GERD
- Post-meal urgency
Quality of Life
- Food anxiety / fear of eating
- Social avoidance
- Sleep disruption
- Work/school impact
- Mental health burden
The Smart Gut Diary
Every gastroenterologist says the same thing: "Keep a food diary." But paper diaries fail because they can't connect the dots. Leo's gut diary will automatically correlate meals, symptoms, stress, and stool patterns — showing you the connections you'd never spot on your own.
Rate overnight symptoms: bloating, pain, urgency. Log first bowel movement with Bristol scale.
Log meal with ingredients. FODMAP categories auto-tagged. Note portion size and eating speed.
Symptom timer starts. Log when symptoms appear after eating — timing reveals which part of the gut is affected.
Mid-day symptom severity rating. Log lunch. Compare morning vs afternoon patterns.
Bristol Stool Scale entry with visual guide. Log urgency, completeness, and any mucus.
Evening meal logging. Note stress level, eating environment, and speed.
Daily symptom summary auto-generated. Rate overall day 1-10. Log sleep quality prediction.
Auto-generated weekly pattern report: worst trigger foods, best days, stress-symptom correlation, Bristol trends.
Food-Symptom Timeline
Coming SoonCorrelation Found
Garlic dressing at lunch triggered cramping within 75 minutes. Garlic is a high-FODMAP food (fructans). This is the 3rd garlic reaction in 10 days. Consider eliminating garlic during your next elimination phase.
Pattern Detection
Leo's on-device correlation engine identifies your worst trigger foods and safest meals over time
Timing Matters
30-min reactions suggest upper GI; 4-hour reactions suggest lower GI
PDF Export
Share your complete food-symptom diary with your gastroenterologist
Your Complete IBS Toolkit
Everything IBS patients need to understand their gut, identify triggers, and communicate effectively with their gastroenterologist — all coming to Leo.
Smart Gut Diary
Coming SoonDaily symptom logging purpose-built for IBS. Track abdominal pain location (upper, lower, left, right, diffuse) with severity ratings, bloating intensity, gas frequency, stool count, and overall gut comfort score. The diary learns your patterns and prompts you at the right times.
- Abdominal pain location mapping
- Bloating severity scale (0-10)
- Stool frequency & consistency
- Gas and flatulence tracking
- Gut comfort daily score
- Smart reminder prompts
FODMAP Tracker
Coming SoonBuilt-in FODMAP database covering hundreds of foods, categorized by Monash University guidelines. Track your elimination phase (2-6 weeks), then systematically reintroduce each FODMAP group: fructose, lactose, fructans, GOS, polyols (sorbitol & mannitol). Know exactly which FODMAPs your gut tolerates.
- Monash University FODMAP categories
- Elimination phase tracker
- Systematic reintroduction protocol
- Per-FODMAP-group tolerance mapping
- Serving size thresholds
- Safe food list builder
Bristol Stool Scale
Coming SoonVisual stool form tracking using the Bristol Stool Scale (Types 1-7). Log each bowel movement with form type, urgency level, completeness, mucus presence, and straining. See weekly trends charted over time — essential data for distinguishing IBS-C, IBS-D, and IBS-M patterns.
- Visual Bristol Scale (Types 1-7)
- Urgency & completeness logging
- Mucus and straining tracking
- Weekly distribution charts
- Subtype pattern detection
- Trend analysis over months
Food Reaction Logger
Coming SoonMeal logging with timed symptom onset tracking. Record exactly what you ate, then log when symptoms appear and how severe they are. Over time, Leo builds a personal food-reaction database showing which foods cause which symptoms and how quickly — from 30-minute reactions to next-day effects.
- Meal-to-symptom timing capture
- Ingredient-level breakdown
- Reaction severity scoring
- Personal trigger food database
- Delayed reaction tracking (24-48h)
- Confidence scoring per food
Stress-Gut Correlator
Coming SoonThe gut-brain axis is real: stress directly affects gut motility, sensitivity, and microbiome composition. Track daily stress levels, anxiety, sleep quality, and life events alongside your GI symptoms. Leo reveals the correlation patterns your gastroenterologist needs to see.
- Daily stress level rating
- Anxiety & mood tracking
- Sleep quality correlation
- Life event tagging
- Gut-brain pattern charts
- Stress-flare timeline overlay
IBS Flare Predictor
Coming SoonSmart pattern detection that analyzes your food diary, stress levels, sleep, menstrual cycle, and symptom history to identify your personal trigger combinations. Over time, Leo learns that your flares follow specific patterns — like high-FODMAP meals + poor sleep + work stress.
- Multi-factor trigger analysis
- Personal pattern learning
- Food + stress + sleep combos
- Menstrual cycle correlation
- Flare risk score
- Preventive recommendations
Gastroenterologist Report
Coming SoonGenerate doctor-ready PDF reports organized the way GI specialists actually want to see data: Bristol stool distribution, food trigger analysis with confidence scores, symptom frequency heatmaps, treatment response tracking, and FODMAP reintroduction results. Stop struggling to remember — let your data speak.
- Bristol distribution charts
- Top trigger foods ranked
- Symptom frequency heatmap
- Treatment response tracking
- FODMAP tolerance summary
- Export as PDF or share directly
Low FODMAP Guide
Coming SoonBuilt-in food reference with traffic-light system: green (low FODMAP, eat freely), amber (moderate FODMAP, limit serving size), red (high FODMAP, avoid during elimination). Covers Monash categories — fructose, lactose, fructans, GOS, sorbitol, and mannitol — with safe serving sizes.
- Green/amber/red traffic light system
- All 6 FODMAP categories covered
- Safe serving size guidance
- Grocery shopping mode
- Restaurant meal suggestions
- Swap recommendations
How Leo Compares
Most IBS apps do one thing well — food logging or symptom tracking. Leo brings everything together with smart correlation analysis.
| Feature | Leo | Other Apps |
|---|---|---|
| Smart Gut Diary | ||
| FODMAP Tracking | ||
| Bristol Stool Scale | ||
| Food-Symptom Timing | ||
| Stress-Gut Correlation | ||
| Smart Trigger Detection | ||
| Multi-Condition Support | ||
| Apple Watch Integration | ||
| Doctor-Ready PDF Reports | ||
| Menstrual Cycle Correlation | ||
| Gamification & Rewards | ||
| Free (No Premium Paywall) |
= available in some apps
Identify Your Triggers
IBS triggers are highly individual. What affects one person may be perfectly fine for another. Leo helps you log symptoms alongside food, stress, hormones, and medications — so you can spot patterns to discuss with your doctor.
Dietary
- High FODMAP foods
- Garlic & onion
- Wheat & gluten
- Dairy / lactose
- Artificial sweeteners (sorbitol, xylitol)
- Excess caffeine
- Alcohol
- Spicy foods
Lifestyle
- Chronic stress & anxiety
- Poor or disrupted sleep
- Irregular meal times
- Eating too quickly
- Travel & routine changes
- Sedentary lifestyle
- Dehydration
Hormonal
- Menstruation (IBS symptoms worsen during period)
- Hormonal fluctuations (progesterone affects gut motility)
- PMS-related bloating amplifies IBS bloating
- Perimenopause GI changes
Medical
- Antibiotics (microbiome disruption)
- NSAIDs (ibuprofen, aspirin)
- Food poisoning history (PI-IBS)
- PPIs (proton pump inhibitors)
- Antidepressants (GI side effects)
Understand Your Gut. Stop Guessing, Start Tracking.
Download Leo and set up your conditions now — IBS tools are coming soon.
Set up your condition profile today so you're ready when IBS-specific tools launch. Free to download. No premium paywall.