Axis 2
Studiedness
- Evidence amount
- 1.00
- Direction balance
- The direction of the study results has not been extracted.
- PMID records loaded
- 38
- Records after title/year deduplication
- 38
entity · release 2026-09-20
Bifidobacterium longum BB536
Structured fields rendered from the release dataset. Unknown values retain a reason; price is outside GIS.
Across the corpus
How this organism is actually sold
- Printed CFU per serving
- 2,000,000,000 – 16,000,000,000; median 5,000,000,000. Measured on the 8 of 36 published products carrying it whose latest published label prints a figure for it; the rest print a blend total or no quantity, and earlier label versions in the table below may print other figures. 0 row(s) print a CFU below 1 000 and are excluded as a label or parsing artefact.
- Cost per day
- $0.49 – $1.94; median $0.85. Measured on the 4 of 36 published products carrying it with an observed price and a computable days-of-supply.
- Forms
- Capsule: 23 · Other (e.g. tea bag): 1 · Powder: 4 · Softgel Capsule: 7 · Tablet or Pill: 1 · counted across the 36 of 36 published products whose label states a form
- Brands carrying it
- integrative-therapeutics (5) · jarrow-formulas (4) · kyo-dophilus (3) · natural-factors (3) · nature-s-way (6) · the five largest of 19 brands with a published product
- Published product pages
- 36
Products
Published products carrying this organism
| Product | Printed CFU | Printed dose | Cost per day | Form | Gut Index Score |
|---|---|---|---|---|---|
| Natural Factors RevitalX | 5,000,000,000 | not printed | not observed | Powder | 95.28 |
| Natural Factors TravelBiotic | 10,000,000,000 | not printed | not observed | Capsule | 95.28 |
| Life Extension Bifido GI Balance | 2,000,000,000 | not printed | not observed | Capsule | 88.53 |
| AOR Advanced Orthomolecular Research Advanced Seasonal Ease | 4,000,000,000 | not printed | not observed | Capsule | 88.53 |
| Natural Factors WS WomenSense UriSense | 5,000,000,000 | not printed | not observed | Capsule | 88.53 |
| Jarrow Formulas Jarro-Dophilus EPS 25 Billion CFU | not printed | not printed | $1.94 | Capsule | 84.03 |
| SuperSmart Bifidobacterium Longum | not printed | not printed | not observed | Capsule | 84.03 |
| Jarrow Formulas Jarro-Dophilus Ultra 50 Billion CFU | not printed | not printed | $0.61 | Capsule | 78.53 |
| Natural Factors Gastro-Assist | 10,000,000,000 | not printed | not observed | Capsule | 77.50 |
| International Vitamin Corporation Nickelodeon SpongeBob SquarePants Probiotic + Prebiotic Natural Berry Blast | not printed | not printed | not observed | Powder | 77.28 |
| Member's Mark Probiotic Plus Prebiotic Natural Berry Flavor | not printed | not printed | not observed | Powder | 77.28 |
| Bodybuilding.com Signature Probiotic | 2,000,000,000 | not printed | not observed | Capsule | 73.00 |
The 12 highest-scoring of 36 published products carrying it.
Reformulations
Label changes involving this organism
4 change(s) to this organism's own row, observed on 1 product(s). A change is counted only between two snapshots whose ingredient rows were both parsed; a first observation is not a change.
- Natural Factors RevitalX: 220570 → 282627
- Natural Factors RevitalX: 220576 → 282627
- Natural Factors RevitalX: 282627 → 282151, potency basis at_manufacture → through_expiry
- Natural Factors RevitalX: 38648 → 220570, organism added to the label, potency basis through_expiry → at_manufacture
Containing labels76
Evidence amount1.00
Direction balanceThe direction of the study results has not been extracted.
Matched PubMed records
38 records (retracted records excluded; 0 retracted records match the query separately). PubMed query
Matched records include trials of multi-ingredient products; this is not a count of trials of this entity alone.
- 2026 · The Effect of a Probiotic on Gut Microbiota Stability and Systemic Well-Being during Short-Term Travel.
- 2026 · Short-term responsiveness of DNA methylation-based aging biomarkers to a multimodal intervention comprising exercise and dietary guidance involving daily consumption of yogurt containing Bifidobacterium longum BB536: an exploratory randomized controlled trial.
- 2026 · Bifidobacterium longum BB536 is associated with improvements in gastrointestinal symptoms and odor-related metabolites in microbiota-defined subgroups of male athletes consuming a high-protein diet: exploratory randomized double‑blind placebo‑controlled trial.
- 2026 · School-Age Neurodevelopmental and Atopy Outcomes in Extremely Preterm Infants: Follow-Up from the Single Versus Triple-Strain Bifidobacterium Randomized Controlled Trial.
- 2025 · Probiotic viability in the gastrointestinal tract in a randomised placebo controlled trial: combining molecular biology and novel cultivation techniques.
- 2025 · Effects of a live versus heat-inactivated probiotic Bifidobacterium spp in preterm infants: a randomised clinical trial.
- 2024 · The Impact of Fermented Milk Products Containing Bifidobacterium longum BB536 on the Gut Environment: A Randomized Double-Blind Placebo-Controlled Trial.
- 2024 · Effects of Bifidobacterium longum BB536 and Bifidobacterium breve MCC1274 on Body Composition in Normal and Overweight Adults in Randomized Placebo-Controlled Study.
- 2023 · The Potential Immunomodulatory Effect of Bifidobacterium longum subsp. longum BB536 on Healthy Adults through Plasmacytoid Dendritic Cell Activation in the Peripheral Blood.
- 2023 · Efficacy and Safety of Synbiotics in Patients Undergoing Autologous Hematopoietic Stem Cell Transplantation: A Randomized, Double-blinded, Placebo-controlled Pilot Study.
ClinicalTrials.gov
11 interventional studies. ClinicalTrials.gov query
This species has 49 tracked designations; this one appears on 76 labels (median 4).
Species and related strains
Axis 1 · inverted
Containing label versions
Showing 76 of 76 rows, ordered by Gut Index Score descending, then DSLD label ID. Download full CSV · Download full JSON.
| Brand | Product | DSLD | Gut Index Score | Strain named | Per-organism quantity | Potency basis | Versions |
|---|---|---|---|---|---|---|---|
| Natural Factors | TravelBiotic | 220121 | 95.28 | true | 10,000,000,000 CFU | through expiry | 2 |
| Natural Factors | TravelBiotic | 220887 | 95.28 | true | 10,000,000,000 CFU | through expiry | 2 |
| Natural Factors | RevitalX | 282151 | 95.28 | true | 5,000,000,000 CFU | through expiry | 5 |
| Natural Factors WS WomenSense | UriSense | 76555 | 88.53 | true | 5,000,000,000 CFU | at manufacture | 1 |
| AOR Advanced Orthomolecular Research Advanced | Seasonal Ease | 214873 | 88.53 | true | 4,000,000,000 CFU | at manufacture | 1 |
| Natural Factors | RevitalX | 220570 | 88.53 | true | 5,000,000,000 CFU | at manufacture | 5 |
| Natural Factors | RevitalX Step 1 | 220576 | 88.53 | true | 5,000,000,000 CFU | at manufacture | 5 |
| Life Extension | Bifido GI Balance | 232059 | 88.53 | true | 2,000,000,000 CFU | at manufacture | 1 |
| Nature's Way | Primadophilus Reuteri Pearls | 183977 | 84.03 | true | not printed for this organism | through expiry | 4 |
| Nature's Way | Primadophilus Reuteri Pearls | 184000 | 84.03 | true | not printed for this organism | through expiry | 4 |
| SuperSmart | Bifidobacterium Longum | 250180 | 84.03 | true | not printed for this organism | not stated | 2 |
| Jarrow Formulas | Jarro-Dophilus EPS 10 Billion CFU | 307627 | 84.03 | true | not printed for this organism | through expiry | 3 |
| Jarrow Formulas | Jarro-Dophilus EPS 10 Billion CFU | 307628 | 84.03 | true | not printed for this organism | through expiry | 3 |
| Jarrow Formulas | Jarro-Dophilus EPS 25 Billion CFU | 307632 | 84.03 | true | not printed for this organism | through expiry | 1 |
| SuperSmart | Bifidobacterium Longum | 315520 | 84.03 | true | not printed for this organism | not stated | 2 |
| Jarrow Formulas | Jarro-Dophilus Ultra 50 Billion CFU | 307629 | 78.53 | true | not printed for this organism | through expiry | 1 |
| Natural Factors | Gastro-Assist | 179381 | 77.50 | true | 10,000,000,000 CFU | at manufacture | 1 |
| Member's Mark | Probiotic Plus Prebiotic Natural Berry Flavor | 47256 | 77.28 | true | not printed for this organism | at manufacture | 1 |
| International Vitamin Corporation | Nickelodeon SpongeBob SquarePants Probiotic + Prebiotic Natural Berry Blast | 64124 | 77.28 | true | not printed for this organism | at manufacture | 1 |
| Natural Factors | RevitalX | 282627 | 77.28 | true | not printed for this organism | at manufacture | 5 |
| Bodybuilding.com Signature | Probiotic | 203238 | 73.00 | true | 2,000,000,000 CFU | not stated | 1 |
| Purity Products | Triple Action Probiotic | 244231 | 73.00 | true | not printed for this organism | through expiry | 1 |
| Nature's Way | Probiotic Pearls Adult 50+ | 184397 | 72.78 | true | not printed for this organism | not stated | 3 |
| Nature's Way | Probiotic Pearls Adult 50+ | 184402 | 72.78 | true | not printed for this organism | not stated | 3 |
| Nature's Way | Probiotic Pearls Acidophilus | 267641 | 72.78 | true | not printed for this organism | not stated | 5 |
| Nature's Way | Probiotic Pearls Complete | 268081 | 72.78 | true | not printed for this organism | not stated | 5 |
| Nature's Way | Probiotic Pearls Acidophilus | 293402 | 72.78 | true | not printed for this organism | not stated | 5 |
| Jarrow Formulas | Jarro-Dophilus plus FOS 3.4 Billion CFU | 307625 | 72.78 | true | not printed for this organism | not stated | 2 |
| Jarrow Formulas | Jarro-Dophilus plus FOS 3.4 Billion CFU | 307630 | 72.78 | true | not printed for this organism | not stated | 2 |
| Integrative Therapeutics | Pro-Flora Concentrate | 313852 | 72.78 | true | not printed for this organism | not stated | 2 |
| Nature's Way | Acidophilus Probiotic Pearls 1 Billion | 317036 | 72.78 | true | not printed for this organism | not stated | 5 |
| Nature's Way | Probiotic Pearls Acidophilus | 317120 | 72.78 | true | not printed for this organism | not stated | 5 |
| Integrative Therapeutics | Probiotic Pearls | 317367 | 72.78 | true | not printed for this organism | not stated | 1 |
| Integrative Therapeutics | Probiotic Pearls | 317921 | 72.78 | true | not printed for this organism | not stated | 1 |
| Nature's Way | Primadophilus Reuteri Probiotic Pearls | 328033 | 72.78 | true | not printed for this organism | not stated | 4 |
| Nature's Way | Primadophilus Reuteri Probiotic Pearls | 332947 | 72.78 | true | not printed for this organism | not stated | 4 |
| Nature's Way | Acidophilus Probiotic Pearls 1 Billion Cultures | 333924 | 72.78 | true | not printed for this organism | not stated | 5 |
| Celebrate | Celebrate Balance | 340675 | 66.28 | true | not printed for this organism | at manufacture | 1 |
| Kyo-Dophilus | Kyo-Dophilus Pro+ Synbiotic Berry Smoothie | 326230 | 65.69 | true | not printed for this organism | through expiry | 1 |
| Dr. Ohhira's | Probiotics | 295780 | 63.83 | true | not printed for this organism | through expiry | 1 |
| Dr. David Williams | Probiotic Advantage Bifido Beadlet 50+ | 60929 | 63.61 | true | not printed for this organism | not stated | 3 |
| Integrative Therapeutics | Pro-Flora Concentrate | 184752 | 63.61 | true | not printed for this organism | not stated | 2 |
| Jarrow Formulas | Jarro-Dophilus EPS 5 Billion CFU | 323063 | 63.40 | true | not printed for this organism | through expiry | 3 |
| Pure Encapsulations | Probiotic IMM | 278257 | 61.77 | true | not printed for this organism | not stated | 1 |
| Douglas Laboratories | iFlora Multi-Probiotic Kids | 26941 | 61.75 | true | not printed for this organism | not stated | 2 |
| Nature's Way | Probiotic Pearls Complete | 268078 | 61.75 | true | not printed for this organism | not stated | 5 |
| Integrative Therapeutics | Pro-Flora Immune | 184759 | 59.02 | true | not printed for this organism | not stated | 1 |
| Kyo-Dophilus | Multi 9 Probiotic | 219741 | 59.02 | true | not printed for this organism | not stated | 2 |
| Nature's Way | Probiotic Pearls Immune | 267894 | 59.02 | true | not printed for this organism | not stated | 1 |
| Nature's Way | Probiotic Pearls Max Potency | 267898 | 59.02 | true | not printed for this organism | not stated | 1 |
| Garden of Life Primal Defense | HSO Probiotic Formula | 297695 | 59.02 | true | not printed for this organism | not stated | 4 |
| Garden of Life Primal Defense | HSO Probiotic Formula | 297696 | 59.02 | true | not printed for this organism | not stated | 4 |
| Garden of Life Primal Defense | HSO Probiotic Formula | 297697 | 59.02 | true | not printed for this organism | not stated | 4 |
| Garden of Life Primal Defense | HSO Probiotic Formula | 297698 | 59.02 | true | not printed for this organism | not stated | 4 |
| Integrative Therapeutics | Probiotic Pearls Advantage | 313851 | 59.02 | true | not printed for this organism | not stated | 2 |
| Quantum Nutrition Labs | Quantum Probiotic Support | 329097 | 58.39 | true | not printed for this organism | at manufacture | 1 |
| Integrative Therapeutics | Probiotic Pearls Advantage | 317922 | 54.44 | true | not printed for this organism | not stated | 2 |
| Nature's Way | Elite Extra Strength Probiotic Pearls 5 Billion Cultures | 334428 | 54.44 | true | not printed for this organism | not stated | 1 |
| Nature's Way | Max Potency Probiotic Pearls 5 Billion | 334440 | 54.44 | true | not printed for this organism | not stated | 1 |
| Nature's Way | Probiotic Pearls Complete | 267947 | 53.89 | true | not printed for this organism | not stated | 5 |
| Nature's Way | Complete Probiotic Pearls 1 Billion | 334433 | 52.58 | true | not printed for this organism | not stated | 5 |
| Nature's Way | Complete Probiotic Pearls 1 Billion | 334431 | 50.75 | true | not printed for this organism | not stated | 5 |
| Kyo-Dophilus | Max Probiotic | 219743 | 49.86 | true | not printed for this organism | not stated | 1 |
| AOR Advanced Orthomolecular Research Advanced | Advanced Biotics | 214420 | 49.61 | true | 20,000,000,000 CFU | at manufacture | 1 |
| Kyo-Dophilus | Multi 9 Probiotic | 219786 | 49.53 | true | not printed for this organism | not stated | 2 |
| Nature's Way | Adult 50+ Probiotic Pearls 1 Billion | 334429 | 48.00 | true | not printed for this organism | not stated | 3 |
| care/of | Gut Check | 240790 | 45.28 | true | not printed for this organism | not stated | 1 |
| Dr. David Williams | Probiotic Advantage Bifido Beadlet 50+ | 60919 | Not available in this release. | true | undefined: light snapshot | not stated | 3 |
| Dr. David Williams | Probiotic Advantage Bifido Beadlet 50+ | 61953 | Not available in this release. | true | undefined: light snapshot | not stated | 3 |
| Life Extension | FLORASSIST Balance | 182174 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Life Extension | FLORASSIST GI with Phage Technology | 182421 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Life Extension Florassist | Balance | 232042 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Life Extension Florassist | GI with Phage Technology | 232334 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Primal Harvest | Primal Gut Restore | 277134 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Jarrow Formulas | Jarro-Dophilus Baby | 307557 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
| Jarrow Formulas | Jarro-Dophilus plus FOS 3.4 Billion CFU | 307624 | Not available in this release. | true | undefined: light snapshot | not stated | 1 |
Axis 3
Measurement integrity
Not a measurement product, so this axis does not apply.
Axis 4
Reddit mention panel
0 observed mentions; no aggregate panel matched this entity.
Products
Also carried by
24 further published products carry it beyond the table above.
Purity Products Triple Action Probiotic · Integrative Therapeutics Pro-Flora Concentrate · Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU · Nature's Way Primadophilus Reuteri Pearls · Nature's Way Probiotic Pearls Acidophilus · Integrative Therapeutics Probiotic Pearls · Integrative Therapeutics Probiotic Pearls · Celebrate Celebrate Balance · Kyo-Dophilus Kyo-Dophilus Pro+ Synbiotic Berry Smoothie · Dr. Ohhira's Probiotics · Jarrow Formulas Jarro-Dophilus EPS 10 Billion CFU · Pure Encapsulations Probiotic IMM · Garden of Life Primal Defense HSO Probiotic Formula · Integrative Therapeutics Pro-Flora Immune · Nature's Way Probiotic Pearls Immune · Quantum Nutrition Labs Quantum Probiotic Support · Integrative Therapeutics Probiotic Pearls Advantage · Nature's Way Elite Extra Strength Probiotic Pearls 5 Billion Cultures · Nature's Way Probiotic Pearls Complete · Kyo-Dophilus Max Probiotic · AOR Advanced Orthomolecular Research Advanced Advanced Biotics · Kyo-Dophilus Multi 9 Probiotic · Nature's Way Probiotic Pearls Adult 50+ · care/of Gut Check
Elsewhere in this release
Related pages
Findings computed over the whole corpus: Strain naming census · Label designation changes · Strain dose match · Stability literature gaps
Tools: DSLD product check · Unit value calculator
Citation
Cite this page
Ivitskiy, I. (2026). Bifidobacterium longum BB536. Gut Registry, release 2026-09-20. Elanvale Ltd. https://gutregistry.com/s/bifidobacterium-longum-bb536/
The underlying tables are published under CC BY 4.0: this page as CSV · as JSON · full release and data dictionary. Cell-level provenance names the source record and its observation date.
Citable atoms
Release claims
Bifidobacterium longum BB536 appears on 76 of 13,330 labels in the NIH DSLD snapshot (Sep 2026), from 24 brands; rank 23 of 692 designations by distinct label count.
76 / 13330 observed label versions · NIH DSLD snapshot Sep 2026 · entity.prevalence · checked 2026-09-20T00:00:00Z · snapshot b7633f73243713 of 76 containing labels in the NIH DSLD snapshot (Sep 2026) print a quantity for Bifidobacterium longum BB536 (17.1%); 9 light records have quantities unavailable.
13 / 76 containing labels · NIH DSLD snapshot Sep 2026 · entity.quantity · checked 2026-09-20T00:00:00Z · snapshot b7633f73243738 PubMed records indexed as human randomized controlled trials match the published query (as of 2026-09-15). 38 records (retracted records excluded; 0 retracted records match the query separately).
38 / 38 loaded PMID records · NIH DSLD snapshot Sep 2026 · entity.evidence · checked 2026-09-20T00:00:00Z · snapshot b7633f73243711 interventional studies on ClinicalTrials.gov match the published query.
Published ClinicalTrials.gov query
11 / Not available in this release. interventional registry studies · NIH DSLD snapshot Sep 2026 · entity.registered_trials · checked 2026-09-20T00:00:00Z · snapshot b7633f7324374 of 47 SKUs containing Bifidobacterium longum BB536 have a numeric price observation (8.5%) in the release accompanying the NIH DSLD snapshot Sep 2026.
4 / 47 containing SKUs · NIH DSLD snapshot Sep 2026 · entity.price · checked 2026-09-20T00:00:00Z · snapshot b7633f732437