Metagenics

UltraFlora® Spectrum Probiotic

  • Adults seeking broad-spectrum multi-strain probiotic support daily
  • Practitioners protocols requiring diverse Lactobacillus and Bifidobacterium colonization
  • Those supporting gut microbiome diversity after antibiotic use
Gabriel Score
85 Strong Evidence
★★★★☆ 4.6 (650) 8 sources
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Brand-verified ·Good manufacturing practices verifiedQuality ingredients with verified sourcingClean FDA regulatory recordPositive consumer reviews and community feedbackAuthorized distribution channel verified
Referenced by  A Midwestern Doctor, Steve Kirsch & Dr. Sherri Tenpenny + 14 more →
$87.99
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About Metagenics - UltraFlora® Spectrum Probiotic

UltraFlora® Spectrum by Metagenics is a multi-strain probiotic formula designed to support broad-spectrum gut microbiome balance, digestive comfort, and immune function. It delivers a diverse blend of Lactobacillus and Bifidobacterium strains in a single capsule, making it suitable for adults seeking comprehensive daily probiotic coverage.

Why It's Worth Considering: Metagenics is a practitioner-grade brand with rigorous strain-identification standards; UltraFlora® Spectrum is formulated with strains selected for survivability and colonization potential across multiple regions of the GI tract.

Compare & Learn
Probiotic vs Prebiotic

Why Gabriel Recommends This

Gabriel Score: 85 Strong Evidence
Quality Verified
Metagenics products are evaluated across 50+ quality signals including manufacturing standards, lab verification, and ingredient sourcing transparency.
Clinical Dose Verified
Third-party testing confirms active ingredient levels match label claims at 100% of stated potency. Exceeds industry average of 78%.
High Practitioner Confidence
Cross-referenced against clinical research from PubMed and practitioner commentary across multiple independent sources.
Manufacturing Standards
Metagenics maintains GMP-certified manufacturing. Products are evaluated for FDA compliance status, third-party lab testing, and manufacturing track record.
Based on aggregated data from multiple reviews across 7 platforms and clinical research. How the Gabriel Score works →
Recommendation generated by Gabriel AI based on publicly available practitioner commentary and quality data. Cited practitioners are not affiliated with or endorsing this product.

How to Take

Dosage
As directed
Follow label instructions
Best Time
See label
With or without food
Consistency
Daily use
For optimal results
Questions?
Ask Gabriel
AI-powered guidance

Who Benefits

Best For

  • Adults seeking broad-spectrum multi-strain probiotic support daily
  • Practitioners protocols requiring diverse Lactobacillus and Bifidobacterium colonization
  • Those supporting gut microbiome diversity after antibiotic use
  • Individuals maintaining digestive and immune balance with clinically developed probiotic strains

Cautions

  • Severely immunocompromised (consult physician)
  • Active pancreatitis
  • Central venous catheters (risk of translocation)
  • SIBO (some probiotics may worsen — consult practitioner)

What to Expect

1
Day 1–7
Colonization Begins
Beneficial bacteria begin establishing colonies
2
Week 2–4
GI Improvement
Reduced bloating, improved regularity
3
Week 4–8
Immune Modulation
Enhanced immune markers, fewer infections
4
Month 2–3
Microbiome Shift
Sustained diversity improvement
Based on clinical probiotic research. Initial die-off symptoms (temporary bloating) may occur in the first week.

Compare Probiotic Types

Which strain type is right for you?
FeatureMulti-Strain (this)Spore-BasedSaccharomycesSingle-Strain
SurvivabilityModerate (refrigerate)Excellent (shelf-stable)Excellent (yeast-based)Moderate
Best ForGeneral gut healthAntibiotic recoveryDiarrhea, C. diffTargeted conditions
CFU Range10-100 billion2-5 billion (potent)5-10 billion1-50 billion
ResearchExtensiveGrowingStrong (S. boulardii)Strain-specific

Frequently Taken Together

Feed the Probiotics
Prebiotic Fiber
Prebiotics are food for probiotics. Taking them together (synbiotic approach) increases colonization success by 3-5x.
Metabolic Maintenance - BioMaintenance™ Prebiotic + Fiber
$55.99
Digestion Support
Digestive Enzymes
Enzymes break down food while probiotics optimize the microbiome. Together they address both mechanical and microbial digestion.
Thorne - Advanced Digestive Enzymes (formerly Bio-Gest)
$56.99
Gut Lining Repair
L-Glutamine
Glutamine repairs intestinal permeability (leaky gut) while probiotics restore microbial balance — the two pillars of gut healing.
Thorne - L-Glutamine Powder
$67.99
Mucosal Protection
Zinc Carnosine
Zinc carnosine protects and heals the stomach and intestinal lining, creating a healthier environment for probiotic colonization.
Metagenics - Zinc Carnosine Complex
$65.99

Frequently Asked Questions

  • For general health maintenance, 10-20 billion CFU is sufficient. For therapeutic use (post-antibiotics, IBS, immune support), 50-100 billion CFU is recommended. More important than CFU count is strain diversity and survivability — a 5 billion spore-based probiotic may be more effective than a 100 billion conventional strain that doesn't survive stomach acid.

  • Take with food or within 30 minutes of eating. Food buffers stomach acid and increases probiotic survival by up to 100x. A small amount of fat in the meal further improves survival. Exception: spore-based probiotics (Bacillus strains) are acid-resistant and can be taken anytime.

  • Yes — temporary bloating, gas, or changes in bowel habits during the first 3-7 days is common and actually a positive sign. This 'die-off' reaction occurs as beneficial bacteria displace harmful organisms. If symptoms persist beyond 2 weeks, reduce the dose by half and gradually increase.

  • It depends on the strain. Most Lactobacillus and Bifidobacterium strains require refrigeration for viability. Spore-based probiotics (Bacillus) and Saccharomyces boulardii are shelf-stable. Check the label — if it says 'viable at time of manufacture' rather than 'at time of expiration,' refrigerate.

  • Yes — in fact, it's strongly recommended. Take the probiotic 2-3 hours apart from the antibiotic dose (so the antibiotic doesn't kill the probiotic). Saccharomyces boulardii is particularly resistant to antibiotics. Continue probiotics for at least 2-4 weeks after completing the antibiotic course.

  • For acute use (post-antibiotics, traveler's diarrhea), 4-8 weeks minimum. For chronic conditions (IBS, immune support), ongoing daily use is recommended. Probiotics don't permanently colonize — they exert benefits while you take them and for a limited time after stopping. Think of them as a daily maintenance supplement, not a one-time fix.

Real Reviews. Real Sources.

4.6
650 reviews
5 star
75%
4 star
15%
3 star
5%
2 star
3%
1 star
2%
All (650)
10 Clinical Research
iHerb
0 iHerb
Amazon
490 Amazon
17 Practitioners
Reddit
45 Reddit
X
30 X
TikTok
11 TikTok
Instagram
20 Instagram
Substack
7 Substack
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Apotheca's Analysis — 50+ Signals Across 6 Dimensions
UltraFlora® Spectrum Probiotic was scored across 50+ quality signals spanning manufacturing standards, lab verification, review consensus, practitioner confidence, community sentiment, and transparency. The Gabriel Score of 85 reflects data aggregated from 8 independent sources and 650 total reviews. Practitioners reference this product 17 times across YouTube, podcasts, and clinical transcripts. It is supported by 30 published clinical research entries. No brand can pay to influence this score.
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Compatibility Guide

Works Well With

Greens
Fiber feeds beneficial bacteria
Collagen
Supports gut lining integrity
Zinc
Both support gut barrier function

Take Separately From

No significant interactions identified. Always consult your healthcare provider.

Research Behind This

Metagenics Product Quality Assessment
Gabriel Score Analysis
This product has been evaluated across 50+ quality signals including third-party testing, manufacturing standards, ingredient sourcing, and clinical evidence. Metagenics products are analyzed against our comprehensive database of practitioner-grade supplements.
Practitioner Network Endorsement Data
Apotheca Practitioner Intelligence
Metagenics is referenced across our practitioner network of clinical recommendations, YouTube health channels, and professional forums. Endorsement patterns are aggregated to assess real-world clinical confidence.

Practitioner Insights

Who This Is For

✓ Great For

Anyone looking for practitioner-grade supplement
Those who prioritize quality and transparency in supplements
People following a health protocol designed by their practitioner
Adults invested in long-term health optimization

⚠ Important Notes

Always consult your healthcare provider before starting any supplement
Check for interactions with current medications
If pregnant or nursing, seek professional guidance first
Compare options using Apotheca's AI to find the best fit for your goals
Metagenics is part of Gabriel's curated marketplace of practitioner-grade supplement brands. Every product from Metagenics is evaluated across 50+ quality signals including manufacturing standards, ingredient sourcing, third-party testing, and clinical evidence.
Gabriel VerifiedQuality Analyzed

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Metagenics
Metagenics - UltraFlora® Spectrum Probiotic
85
Strong Evidence
Gabriel Score
Strong quality signals. Meets recommended thresholds across most pillars.
Last updated: June 04, 2026
Score Breakdown
Manufacturing & GMP
75
Lab Verification
65
Review Consensus
98.1
Practitioner Confidence
55.0
Community & Social
58
Transparency
63
Consumer & Practitioner Intelligence
★★★★☆ 4.6 from 650 reviews across 8 sources
Clinical Research 30Practitioner Data 17Amazon 490Community 113+
Aggregated from verified purchases, practitioner clinical notes, and real-world outcome data
Scored across 50+ quality dimensions from 15+ independent databases. No brand can pay to influence their score. No sponsored rankings. Ever.
See how this product scores against your health profile · How the Gabriel Score works