Your Ultimate Guide to Fiber-Rich Wellness & Gut Health
Fiber Guru is the intelligent, science-backed app that makes it simple to track your daily fiber intake, monitor gut health with AI-powered insights, and unlock the full benefits of dietary fiber and microbiome diversity. No lab kit required.
Most Americans consume less than half the recommended daily fiber. Fiber Guru helps you close that gap with personalized tracking, a world-class gut health tracker, smart food discovery, and practical daily guidance.
Why fiber is a health game-changer
Modern research confirms that dietary fiber reduces the risk of heart disease, stroke, diabetes, and obesity while improving gut health and immune function.
Log meals and see your fiber totals in real time against personalized goals.
Find the highest-fiber foods by category, with serving sizes and nutrition data.
Learn how fiber impacts heart, gut, metabolic, and immune health.
AI-powered symptom tracking, gut-brain-energy insights, and the 30-plant diversity challenge.
Most people are falling dangerously short on fiber.
Despite clear scientific guidelines, both children and adults in the United States consume less than half of the recommended daily intake. This alarming shortfall has become a public health challenge that demands immediate action.
Average Daily Fiber Intake vs. Recommended
The typical American diet provides only about 15g of fiber per day, well below the 25-38g recommended by health authorities.
Fiber Guru helps you visualize and close this gap every day.
Key Barriers to Better Fiber Intake
- Low awareness of fiber's full range of health benefits beyond digestion
- Difficulty identifying which foods are truly high in fiber
- No easy way to track daily fiber consumption
- Confusion about how much fiber is needed at different life stages
Fiber is more than digestion. It's a cornerstone of total health.
A wealth of scientific evidence confirms fiber's powerful impact on nearly every aspect of your health, from your heart to your gut to your immune system.
Heart & Cardiovascular Health
Reduces the risk of coronary heart disease, stroke, and hypertension. High fiber intake is linked to significantly lower cardiovascular mortality.
Metabolic & Blood Sugar Control
Enhances glycemic control and insulin sensitivity in both diabetic and non-diabetic individuals, helping stabilize energy throughout the day.
Weight Management
Improves satiety and contributes to healthy, sustained weight loss by helping you feel fuller for longer after meals.
Gut & Digestive Wellness
Promotes relief from GERD, duodenal ulcers, diverticulitis, constipation, and hemorrhoids. Fiber is the foundation of a healthy gut.
Immune System Support
Certain fibers act as prebiotics, fueling beneficial gut bacteria and strengthening your immune defenses from the inside out.
For All Ages
The health benefits of dietary fiber extend across the entire lifespan, from growing children to older adults seeking disease prevention.
The science behind fiber is clear and compelling.
Decades of peer-reviewed research confirm that dietary fiber is one of the most impactful nutrients for long-term health and disease prevention.
"Individuals with high fiber intake enjoy significantly lower risks of cardiovascular disease, obesity, diabetes, and gastrointestinal disorders. These findings reaffirm what nutrition science has long emphasized: fiber saves lives and elevates quality of life."
- Dr. James W. Anderson et al., landmark fiber research study
Research supported by the National Fiber Council, Procter & Gamble, and the High Carbohydrate, Fiber (HCF) Nutrition Research Foundation.
What the Research Shows
- High fiber intake reduces coronary heart disease risk by up to 30%
- Fiber significantly improves glycemic control and insulin sensitivity
- Adequate fiber consumption is associated with lower rates of obesity
- Prebiotic fibers strengthen the gut microbiome and immune resilience
- Experts recommend 14g of fiber per 1,000 kcal consumed daily
Conditions Fiber Helps Prevent or Manage
- Coronary heart disease and stroke
- Type 2 diabetes and metabolic syndrome
- Obesity and unhealthy weight gain
- Hypertension and high blood pressure
- GERD, diverticulitis, constipation, and hemorrhoids
Everything you need to master your daily fiber intake.
Fiber Guru combines smart tracking, food discovery, and science-backed education into one beautiful, easy-to-use app.
Daily Fiber Tracker
Log your meals and see real-time progress toward your personalized daily fiber goal with clear visual indicators.
Fiber Food Database
Discover high-fiber foods organized by category with detailed nutrition data, serving sizes, and smart recommendations.
Educational Content
Science-backed articles and tips about how fiber impacts heart health, gut health, blood sugar, weight management, and immunity.
Progress & Trends
Visualize your fiber intake over time with weekly and monthly trend charts that keep you motivated and on track.
Installable PWA
Install directly to your home screen for a native app experience. Works offline and loads instantly every time.
Cross-Platform Sync
Start on the web, continue on Android or on your iPhone's home-screen web app. Your data follows you across devices seamlessly.
A world-class gut health platform — no lab kit required.
Fiber Guru goes beyond fiber tracking with a professional, AI-powered gut health platform that matches premium competitors on insight quality while staying free, accessible, and instant to start.
The 30-Plant Challenge
Gamifies the gold standard for microbiome diversity based on the American Gut Project. Track unique plants eaten per week, unlock streaks, and get smart nudges to try new whole-food plants.
No competitor offers this — a feature unique to Fiber Guru.
Gut-Brain-Energy Triad
A unique 10-second daily check-in that captures three interconnected dimensions of your wellbeing. See how they move together and discover what drives your best days.
Holistic integration: connects gut, brain, and energy into one unified view.
AI Correlation Engine
Discover patterns that matter — not just a data diary, but a true intelligence layer that surfaces actionable insights as you log. Your insights sharpen over time.
- You feel 40% better on high-diversity days
- Bloating 3x after eating apples & onions (FODMAPs)
- Sleep quality improves gut feel by ~30%
- Legumes + leafy greens correlate with higher energy tomorrow
Smart Symptom Tracking
Log 12 symptom types, 3 severity levels, and 8 timing options to capture what matters — onset, duration, post-meal timing, and more. Simplified entries with clinical-grade detail.
Built to outperform the best gut health apps in the market.
Every layer of Fiber Guru is designed for professional quality — from the scientific foundation to the AI engine to the user experience.
Scientific Foundation
Built on the American Gut Project, peer-reviewed microbiome literature, and Monash FODMAP research principles. Every feature is rooted in evidence.
AI-Powered Intelligence
A true correlation engine that surfaces patterns and actionable insights — not just a food diary. The more you log, the sharper your insights become.
Beautiful, Intuitive UI
Clean, modern charts; intuitive daily check-ins; delightful micro-interactions. Designed so tracking feels effortless, not like a chore.
Comprehensive Tracking
Track symptoms, lifestyle inputs, plant diversity, stool quality, and more — all in one unified platform that connects the dots for you.
Gamified Wellness
30-plant diversity challenge, progress bars, streak tracking, and badges (coming soon). Motivation built into every interaction.
Holistic Integration
Aligns diet, mood, sleep, energy, stress, and activity for whole-person insights. Because gut health doesn't exist in isolation.
Your Competitive Edge
No lab kit, no subscription wall. Instant start on any device.
Clear "add X plant" recommendations you can act on today.
Evidence-based 30-plant challenge grounded in microbiome research.
Connects gut, brain, energy, sleep, and mood into one unified picture.
Practical ways to boost your fiber intake starting today.
Incorporating more fiber into your daily life doesn't have to be complicated. Fiber Guru helps you discover and apply these strategies effortlessly.
Start with High-Fiber Mornings
Begin the day with oats, high-fiber cereals, chia seeds, or whole-grain toast for an early fiber boost.
Add Fruits & Veggies to Every Plate
Aim for at least one serving of fruits or vegetables with every meal to naturally increase your intake.
Choose Whole Grains
Swap white bread, rice, and pasta for whole-grain alternatives that pack significantly more fiber per serving.
Embrace Legumes & Beans
Lentils, chickpeas, and black beans are fiber powerhouses. Add them to soups, salads, and grain bowls.
Snack Smart
Choose nuts, seeds, popcorn, or fiber-rich bars as satisfying snacks that contribute to your daily goal.
Track with Fiber Guru
Use the app to log your meals and visualize progress. What gets measured gets managed.
Start improving your fiber intake in three simple steps.
Get the App
Launch the web app instantly at fiberguru.app, or download the Android version for native mobile access.
Set Your Goal
Enter your daily calorie intake and the app calculates your personalized fiber target based on expert guidelines.
Track & Improve
Log your meals, discover high-fiber foods, and watch your daily fiber intake improve week over week.
Built for anyone who wants to eat smarter and feel better.
Health-Conscious Individuals
Anyone who wants to optimize their diet and close the fiber gap with practical daily guidance.
Families & Parents
Help your whole family understand and meet daily fiber needs, from growing children to adults.
People Managing Health Conditions
Those with diabetes, heart disease, or digestive issues can use fiber tracking to support their health goals.
Nutrition Students & Educators
A practical companion tool for learning about and teaching the science of dietary fiber.
Download the app and start your fiber wellness journey.
Choose the platform that works best for you. All versions connect to the same powerful Fiber Guru experience.
Web App (PWA)
Launch instantly in your browser. Install to your home screen for a native-like experience.
Launch Web AppNo download required. Works on any modern browser.
Android
Download the signed release APK directly from our secure delivery platform, or wait for our Google Play listing — both channels serve the same build.
Download for AndroidVersion 2.1.2 • Signed release build • Delivered over HTTPS
07a03123649ead738deebd2893d216e67e08a91723f000f5f79e5c81f42ec046
iOS
The native iPhone and iPad build is on the way. Until it lands, the web app installs to your home screen and runs fully on iOS.
iOS — Coming SoonUse the web app on your iPhone today — open fiberguru.app in Safari and tap Share → Add to Home Screen.
Two official channels. One identical, signed app.
Fiber Guru for Android is distributed through a dual-channel system: directly from our own website, and through the Google Play Store. Both channels deliver the same release build, signed with the same certificate. We publish the fingerprints below so you never have to take that on trust — you can check the file yourself before you install it.
Direct from our website
The APK is served over HTTPS from our own secure delivery platform. Nothing is mirrored, bundled, or handed off to a third-party download site.
- Signed production release — identical to the Play Store build
- SHA-256 checksum published on this page for every release
- No store account, region lock, or waiting on a review queue
- Ideal if you want the native app today or manage your own devices
Google Play Store
Our Play Store listing is on the way. Because it is signed with the same certificate, Android will treat it as the same app — you will be able to move between channels without uninstalling.
- Automatic background updates through Google Play
- Google Play Protect scanning and store-level review
- Signed with the certificate fingerprint published below
- Ideal if you prefer everything managed inside the Play Store
Published fingerprints
Check these against the file you downloaded, or against what Google Play Console reports for our app. If either value does not match, do not install the file.
07a03123649ead738deebd2893d216e67e08a91723f000f5f79e5c81f42ec046
d95e929a022d0063d11244e7aa0bb6f6b0c6657e66cc58a6e50ee4d9eef0d616
Certificate valid through 17 December 2053 — comfortably past Google's 2033 minimum validity requirement. The APK checksum identifies one specific build and changes with every release. The certificate fingerprint identifies us, and stays the same across releases and across both distribution channels.
How to verify your download
Pick whichever matches the device you downloaded the file on. It takes about thirty seconds.
Verify on Windows
Open PowerShell in your Downloads folder and run:
Get-FileHash -Algorithm SHA256 .\fiberguru-v2.1.2-release.apk
Or, from Command Prompt:
certutil -hashfile fiberguru-v2.1.2-release.apk SHA256
Compare the result with the APK SHA-256 published above. Capitalisation and spaces do not matter — the hex characters must match exactly.
Verify on macOS or Linux
Open Terminal in the folder containing the file and run:
shasum -a 256 fiberguru-v2.1.2-release.apk
On most Linux distributions you can also use:
sha256sum fiberguru-v2.1.2-release.apk
Compare the result with the APK SHA-256 published above.
Verify on your Android phone
You do not need a computer. Install any checksum or hash utility from the Google Play Store, open it, choose the downloaded APK from your Downloads folder, and select SHA-256. Compare the value it shows with the APK SHA-256 published above.
Android will also ask you to confirm before installing an app that did not come from the Play Store. This is a standard prompt shown for every app installed outside the store — it is not a report that anything is wrong with the file. Google Play Protect still scans the app on your device either way.
Verify who signed the app
The checksum proves the file arrived intact. The signing certificate proves it came from us. If you have the Android SDK build tools installed, run:
apksigner verify --print-certs fiberguru-v2.1.2-release.apk
The reported Signer #1 certificate SHA-256 digest must match the app signing certificate fingerprint published above — the same value Google Play Console reports for our app under App integrity. That is what ties the file on this page to our Play Store listing.
If a checksum does not match, delete the file and do not install it, then let us know at glucosensedigital.com so we can look into it. A mismatch usually means an interrupted download — but we would always rather hear about it.
Why Fiber Guru stands apart.
See how Fiber Guru compares to premium gut health apps and generic food trackers.
| Feature | Fiber Guru | Zoe / Cara Care / MFP |
|---|---|---|
| Fiber-focused tracking | Dedicated fiber tracking with daily goals | Fiber buried in macro breakdowns |
| Gut health insights quality | Matches Zoe-level insights — no $250 lab kit | Zoe requires expensive lab kit; Cara Care is symptom-only |
| AI-powered correlations | Smart pattern detection across diet, symptoms & mood | MFP has no AI correlations; Zoe limited to lab results |
| 30-Plant Diversity Challenge | Unique gamified microbiome diversity tracking | No competitor offers this feature |
| Gut-Brain-Energy tracking | Holistic triad connecting gut, mood & energy | Cara Care tracks symptoms only; others don't connect domains |
| Smart symptom tracking | 12 types, 3 severities, 8 timing options | Cara Care: symptom-focused but negative framing |
| Proactive wellness focus | Positive, proactive guidance — not just problem tracking | Cara Care focuses on problem identification |
| High-fiber food discovery | Smart fiber food database by category | No fiber-specific food search |
| Works offline (PWA) | Yes, installable PWA | Requires constant internet |
| Free to start | Yes — no lab kit, instant start | Zoe: $250+; MFP: subscription-gated |
Common questions about Fiber Guru.
What is Fiber Guru?
Fiber Guru is an intelligent wellness app that helps you track your daily fiber intake, discover fiber-rich foods, and learn how dietary fiber impacts your health. It's available as a web app (PWA) on any device, and as a native Android download. A native iOS build is coming soon.
How much fiber should I eat per day?
Most health authorities recommend 25-38 grams per day, or about 14 grams per 1,000 calories consumed. Fiber Guru calculates your personalized target and helps you reach it.
Is Fiber Guru free?
Yes, you can get started with Fiber Guru for free. Launch the web app at fiberguru.app or download the mobile version from this page.
Do I need an account to use the app?
You can start using the web app immediately without creating an account. Creating an account enables data sync across devices and progress tracking over time.
Is the app available on the App Store or Google Play?
Android runs on a dual distribution system: you can download the signed APK directly from our website today, and our Google Play listing is coming soon. Both channels serve the same build signed with the same certificate. On iOS, the native build and App Store listing are both still to come — in the meantime, open fiberguru.app in Safari and add it to your home screen for the full experience.
How do I know the Android APK is safe?
We publish the SHA-256 checksum of every Android release right next to the download button, along with the SHA-256 fingerprint of our app signing certificate — the same fingerprint Google Play Console reports for our app. Check either one before you install and you can confirm the file is our genuine, unmodified build. The Security & Verification section shows you how, in about thirty seconds.
Android asks me to confirm the install — is that expected?
Yes. Android shows a confirmation prompt for any app installed outside the Play Store, regardless of the app or who made it. It is not a report that anything is wrong with the file. Google Play Protect still scans the app on your device, and you can independently confirm the download using the published checksum. If you would rather avoid the prompt entirely, use the web app now or wait for our Google Play listing.
Is Fiber Guru a medical app?
No. Fiber Guru is an educational and wellness tracking tool. It does not provide medical diagnosis, treatment, or individualized medical advice. Always consult your healthcare provider for medical decisions.
What devices does Fiber Guru work on?
Fiber Guru works on any modern smartphone, tablet, or computer. The web app runs in Chrome, Safari, Firefox, and Edge, and installs to your home screen on both Android and iPhone. A native download is available for Android today, with iOS coming soon.
Who makes Fiber Guru?
Fiber Guru is developed by GlucoSense Digital Corporation, a company focused on creating innovative digital health and wellness tools that make healthy living more accessible.
What is the 30-Plant Challenge?
Based on the American Gut Project research, eating 30 different plant types per week is linked to a more diverse, resilient microbiome. Fiber Guru gamifies this goal with tracking, streaks, and smart nudges to help you diversify your diet.
How does the AI Correlation Engine work?
As you log meals, symptoms, and daily check-ins, the AI engine identifies patterns — like which foods trigger bloating, how sleep affects gut feel, or which plant combinations boost your energy. Insights get sharper the more you use the app.
Do I need a lab kit to use the gut health tracker?
No. Unlike competitors that require expensive lab kits ($250+), Fiber Guru delivers professional-quality gut health insights from your daily logging alone. No lab kit, no subscription wall — just instant, actionable insights.
What is the Gut-Brain-Energy Triad?
A unique 10-second daily check-in that captures three interconnected dimensions: gut feel, energy level, and mood. The app shows how these move together, helping you understand what drives your best (and worst) days.
Close the fiber gap. Upgrade your gut health. Live better.
Fiber diversity is one of the most powerful levers for a resilient microbiome. With Fiber Guru, you don't just track — you learn, adapt, and improve. The app connects your meals to how you feel, so you can take confident, daily action.
Disclaimer: Fiber Guru is an educational and wellness tracking tool. It does not provide medical diagnosis, treatment, or individualized medical advice. Always consult your healthcare provider before making significant changes to your diet.