Stop Guessing What's Wrong With Your Gut. Get Answers Today.
The only microbiome test that tracks daily changes over 7 days—not just 1 snapshot. We analyze 3 samples using shotgun metagenomic sequencing to show you how your gut actually behaves.
Clinical-grade microbiome testing trusted by thousands of health seekers.
5,000+
Health Conscious Individuals
120K+
Organisms Detected
Why test your microbiome?
Get to the root cause of chronic conditions
Reduce microbiome risk and relieve eczema, allergies, IBS, constipation and other gut-related issues
Recover from antibiotic exposure
Get tailored recommendations to offset the negative impacts of antibiotics
Track and optimize your family's health
Test proactively and take action early to support a lifetime of better health
Learn the best ways to support the gut
Get the tests, tools, and insights you need to improve wellness over time
How It Works
Simple at-home testing with clinical-grade results
01
Order Your Kit
Ships within 24 hours. Everything included: collection tubes, freezer bag, and prepaid return label.
02
Collect 3 Samples
One sample per day over 7 days. Why 3? Your microbiome varies daily—3 samples give us your true baseline.
03
Ship Your Samples
Pack in the provided freezer bag and drop off at any UPS location. Track your kit online.
04
Lab Analysis
Our CLIA/HIPAA certified lab uses shotgun metagenomic sequencing to detect 120,000+ organisms.
05
Get Your Results
Receive your comprehensive report with personalized recommendations—plus a free 30-minute consultation.
Why 3 Samples?
Most tests use just 1 sample—a single snapshot. We collect 3 samples over 1 week to capture your true microbiome baseline. Three samples = clinical accuracy.
Prevention and care at every stage of life
Whether you're managing chronic symptoms or optimizing health, Dayhoff provides answers at every stage of life
Infants & Babies
Colic Eczema Sleep issues Food sensitivities Diaper rash Thrush
Children
Allergies Asthma ADHD Constipation Frequent illness Picky eating
Teens & Young Adults
Acne Anxiety Depression IBS Autoimmune onset Athletic performance
Adults
IBS Autoimmune Weight gain Chronic fatigue Brain fog Performance
Women's Health
PCOS Endometriosis UTIs Yeast infections Pregnancy Menopause
Seniors
Digestive decline Immune support Cognitive health Medication effects Joint health Energy levels
3-SAMPLE TRACKING
See How Your Microbiome Changes Day to Day
Your microbiome isn't static—it changes based on what you eat, stress, sleep, and digestion. One sample shows a moment in time. Three samples over a week show the real picture. See your score for each collection and understand your true baseline.
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ALL DNA ANALYZED
Shotgun Sequencing Reads Everything in Your Sample
We sequence ALL microbial DNA—not just one bacterial gene like 16S tests. This means we can detect any of 120,000+ bacteria, viruses, fungi, parasites, and archaea at species and strain level. In our sample data, we detected 1,772 unique organisms including beneficial bacteria (Faecalibacterium, Akkermansia), pathogens (Campylobacter), and fungi most tests miss.
What We Test.qtvf_w8__Z1vB88i.svg)
A complete look into your gut microbiome
Get a report reviewed by our experts with the biggest findings and next steps
Reviewed by our experts
Get a report by our microbiology experts with the biggest findings and next steps
Daily variation insights
See how your unique microbiome changes day-to-day with 3 samples over 1 week
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Conditions & associations
Check for microbes linked to chronic health issues like eczema, asthma, IBS, and autoimmune conditions
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AI-Powered Insights
Our algorithms analyze patterns across thousands of samples to surface findings unique to your microbiome
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A full list of microbes
Our tests can detect 120,000+ microbes, showing you who's there and what they're doing
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Personalized action plan
Talk through your results with our handpicked microbiome specialists and get specific next steps
Get specific action steps—not vague advice
Every Dayhoff report includes personalized recommendations with exact brands, dosages, and protocols
Foods to eat & avoid
Get a complete list of foods and recipes to include in your diet—plus which ones to avoid and why
Supplement protocols
Enjoy peace of mind with unbiased supplement recommendations including specific brands, dosages, and timing
Probiotic strains
Discover the right strains of probiotics to support your unique microbiome—not generic formulas
Lifestyle modifications
Add simple, science-backed practices into your everyday life to improve your microbiome and overall health
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Built with leading healthcare experts
Dayhoff's Scientific & Medical Advisory Board
"The most comprehensive microbiome analysis I've seen in clinical practice. Dayhoff's 3-sample protocol is the gold standard."
Dr. Juan Jovel, PhD, Scientific Advisor
Dr. Heather Armstrong, PhD
Scientific Advisor
Canada Research Chair and Associate Professor of Gastroenterology at University of Alberta. Expert in gut microbiome and inflammatory disease research.
Dr. Juan Jovel, PhD
Scientific Advisor
Expert in bioinformatics and metagenomics with extensive publications in microbiome characterization and computational biology.
Dr. Rajiv N. Singh, MD
Medical Advisor
Board-certified Gastroenterologist. Adjunct Clinical Professor at Rocky Vista University. Expertise in GI health, clinical research, and healthcare management.
Dr. Jay Hingwala, MD, FRCPC, MSc
Medical Advisor
Nephrologist and Associate Professor at University of Manitoba. Medical Director of Home Hemodialysis. MSc in Quality Improvement from U of T.
Dr. Guru Kandasamy, MD, DC, CCFP
Medical Advisor
Sports Medicine Physician. Lecturer at University of Toronto Faculty of Medicine. Former medical staff for NHL, MLB, NFL, and CFL teams.
Dr. Szilard Voros, MD, FACC, FAHA
Medical Advisor
Founder & CEO of G3 Therapeutics. Cardiologist and geneticist specializing in precision medicine and panomics-based discovery.
Dr. Su Chen, PhD, MBBS
Lab Director
Medical Director in Clinical Molecular Diagnostics. Former Assistant Professor at MD Anderson Cancer Center. PhD in Molecular Genetics from UT MD Anderson.
Len Goren
Lab Director
CEO of SeqMatic. 25+ years in genomics, NGS services, and life science commercialization. MBA from IMD.
Trusted by Thousands of Health-Conscious Individuals
Precision Testing at Every Price Point
HSA/FSA eligible. Free shipping always. CLIA/HIPAA certified lab. 30-day money-back guarantee if we don't find actionable insights in your results.
Gut Health Essentials
Best for tackling specific digestive issues or getting your first microbiome insights
$ 399
USD Per test
- Whole-genome sequencing (120,000+ microbes)
- Bacteria, fungi, parasites, viruses detected
- Personalized food & supplement list
- Specific probiotic strain recommendations
- 30-min expert consultation included
- Results in 2-3 weeks
Frequently Asked Questions
Your microbiome changes daily based on food, stress, and bowel movements. One sample is a snapshot—3 samples over 1 week give us a comprehensive baseline that averages out daily variation. In our sample data, we often see 10-20% variation between samples. For example, Sample 1 scored 715, Sample 2 scored 733, and Sample 3 scored 737. By averaging all 3, we get a more accurate overall score (728) than any single sample would provide.
We use the same advanced shotgun metagenomic sequencing as Tiny Health (capable of detecting 120,000+ organisms). The difference is our 3-sample collection protocol. Tiny Health, Viome, and BIOHM analyze 1 sample from 1 day—a single snapshot. We analyze 3 samples over 1 week to track daily variation. In our data, scores varied from 715 to 737 between samples—showing patterns you'd completely miss with just one test. Plus, we include a free 30-minute consultation (Tiny charges $100, Viome $99).
Yes. Our CLIA and CAP certified lab meets the same rigorous standards as hospital diagnostic labs. We use shotgun metagenomic sequencing (the gold standard) with 99.9% accuracy. You can share your results with your doctor—many functional medicine providers trust our reports for clinical decision-making.
16S sequencing only reads one bacterial gene, identifies bacteria at genus level, and can't detect viruses, fungi, or parasites. Shotgun metagenomic sequencing reads ALL DNA in your sample—every organism's complete genetic material. This gives species and strain-level detail (like 'Faecalibacterium prausnitzii at 1.49%' instead of just 'Faecalibacterium'), detects viruses, fungi, and parasites 16S misses, and can identify any of 120,000+ organisms in our database. In one sample, we detected 1,772 unique organisms including 7 different Faecalibacterium species, Campylobacter pathogens, and fungal species.
Most people notice symptom relief within 2-4 weeks of following our recommendations. Your gut microbiome can shift in 3-5 days with dietary changes, but lasting rebalancing takes 8-12 weeks. We recommend retesting at 3 months to track progress. Each retest shows: new overall score, changes in key bacteria (Faecalibacterium, Akkermansia, etc.), improvements in diversity, and pathogen clearance.
Yes! Dayhoff tests are HSA/FSA eligible—just use your card at checkout. We provide itemized receipts. For insurance, our tests are currently out-of-pocket, but many members submit our CLIA/HIPAA lab reports for reimbursement. Some functional medicine practices can order our tests as part of your care plan for insurance purposes. We're working on direct insurance billing.
Have more questions? Contact our support team
Ready to See the Full Picture of Your Gut Health?
Shotgun metagenomic sequencing across 3 samples over 1 week. Track daily variation, detect any of 120,000+ organisms at species-level, and see how your microbiome actually behaves. Clinical-grade lab. Free consultation included.
Dayhoff microbiome tests are for informational and educational purposes only. They are not intended to diagnose, treat, cure, or prevent any disease. Test results should be reviewed with a qualified healthcare provider. Our CLIA/HIPAA certified lab provides clinically reliable data that can be shared with your doctor.
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