Study the Evidence.
We give relevant human clinical research particular weight, while considering study quality, consistency, and limitations.
Every decision behind Morning Clarity begins with evidence. We assess how directly research applies to the specific strain and outcome—and communicate both what the findings support and where uncertainty remains.
We give relevant human clinical research particular weight, while considering study quality, consistency, and limitations.
Evidence for one probiotic strain does not automatically apply to another—even within the same species.
We distinguish individual study findings from evidence for a finished product and avoid claims broader than the research supports.
The gut-brain axis is a two-way communication network linking the digestive system and the brain. Researchers study how neural, immune, and hormonal signals — and interactions involving the gut microbiome — contribute to this connection. Understanding this relationship is a starting point for exploring the science of gut-brain probiotics.
Not all probiotics are the same. Even within the same species, strains can differ in their characteristics and the scientific evidence available for each.
That’s why we look at the exact strain, who was studied, how the study was designed, what it measured, and its limitations. Findings for one strain should not automatically be applied to another.
What We Look At
Among the four strains in Morning Clarity, Bifidobacterium longum 1714™ has been studied in human research exploring stress responses, brain activity, sleep, and selected aspects of well-being.
Findings vary by outcome. Some studies reported differences in selected measures, while others found no significant between-group differences in primary outcomes.
These studies provide strain-level scientific context. They do not establish the efficacy of Morning Clarity as a finished product.
Research on an individual probiotic strain helps us understand that strain, but it does not establish the same outcomes for a multi-strain formula. We consider the study design, population, dose, formulation, duration, and measured outcomes when interpreting the evidence.
Morning Clarity combines four named probiotic strains, each evaluated according to its own research. Evidence for an individual strain does not automatically establish the effects of the finished formula.
Studied in human research involving stress responses, neural activity, and selected sleep- and well-being-related outcomes.
A well-studied strain with research on digestive health and selected immune-related outcomes.
Studied in relation to digestive function and selected immune-related outcomes.
Included in the formula's digestive wellness approach, with attention to evidence for the specific strain.
Strain characteristics and formulation ingredients both matter when evaluating a probiotic formula.
Histamine is not added during probiotic culture production. The manufacturer reports that its Human Health probiotic strains were tested and did not produce histamine under the test conditions.
These findings do not establish that the finished product is histamine-free or suitable for everyone limiting histamine exposure.
Inulin is a fermentable dietary fiber commonly described as a prebiotic because certain gut microorganisms can use it.
Its inclusion does not establish a specific prebiotic effect at the amount used. Inulin may cause gas or bloating in some people.
Morning Clarity’s probiotic strains are sourced through Novonesis, and the finished product is manufactured at a Chr. Hansen facility in the United States.
Morning Clarity’s probiotic strains are sourced through Novonesis.
The finished product is manufactured at a Chr. Hansen facility in the United States.
Novonesis was formed in 2024 when Novozymes and Chr. Hansen combined. This corporate relationship connects strain sourcing and finished-product manufacturing within the same group.
This describes the relationship between strain sourcing and finished-product manufacturing. It does not mean every ingredient comes from one supplier or that every production stage takes place at one facility.
A considered approach to probiotic sourcing, U.S. manufacturing, and product quality.
Each probiotic strain and its declared CFU amount is identified in the formulation.
Completed at a Chr. Hansen facility in the United States.
The manufacturing facility holds NSF/ANSI 455-2 certification. This applies to the facility, not the finished product.
Finished-product testing covers strain identity, heavy metals, and microbial quality.
Each capsule provides 12.5 billion CFU through the best-before date when stored according to label directions.
Gut-Brain Axis & Strain-Level Research
The references below include reviews of the microbiota-gut-brain axis, human clinical trials, mechanistic studies, preclinical research, and reviews involving the probiotic strains used in Morning Clarity. Gut-brain axis reviews describe the broader scientific framework; they do not establish the effects of any specific probiotic strain. Study doses, formulations, durations, and participant populations may differ from the finished product. Laboratory and animal findings do not establish effects in humans, and these studies do not establish the efficacy of Morning Clarity as a finished product.
The gut and brain communicate bidirectionally through interconnected neural, endocrine, immune, and metabolic pathways. These reviews summarize the broader scientific framework, including the enteric and central nervous systems and the ways gut microbes may participate in this communication. They provide context for the field rather than evidence for the effects of a particular probiotic strain.
This comprehensive review examines pathways through which the gut microbiota may interact with brain and gut function, including immune signaling, tryptophan metabolism, the vagus nerve, the enteric nervous system, and microbial metabolites.1
Source: Cryan et al. (2019)
This review considers bidirectional communication among the central nervous system, enteric nervous system, gastrointestinal tract, and gut microbiota, and examines how preclinical findings compare with evidence available from human studies.2
Source: Mayer et al. (2015)
This review focuses on communication between intestinal microbiota, the central nervous system, and the enteric nervous system, including neural, endocrine, immune, and other signaling routes relevant to gastrointestinal function.3
Source: Carabotti et al. (2015)
Human and mechanistic research has examined this strain in relation to stress response, brain activity, sleep, and selected measures of well-being. Study designs range from small within-participant research to randomized trials and preclinical investigations.
A repeated-measures, placebo-controlled study in 22 healthy men assessed stress responses, cognitive performance, and EEG activity following four weeks of placebo and four weeks of Bifidobacterium longum 1714™.4
Source: Allen et al. (2016)
A randomized, double-blind, placebo-controlled study examined neural responses during social stress in 40 healthy volunteers taking Bifidobacterium longum 1714™ for four weeks.5
Source: Wang et al. (2019)
An eight-week randomized, double-blind, placebo-controlled trial in 168 adults aged 18–70 reporting low mood examined mood-related symptoms, sleep, stress, and well-being after Bifidobacterium longum 1714™ supplementation.6
Source: Seamans et al. (2026)
An eight-week randomized, double-blind, placebo-controlled trial involving 89 adults aged 18–45 with impaired sleep quality assessed overall sleep quality, individual sleep measures, well-being, and objective sleep parameters after supplementation with Bifidobacterium longum 1714™.7
Source: Patterson et al. (2024)
Research examined immunoregulatory pathways associated with Bifidobacterium longum 1714™, including strain-associated exopolysaccharide, tryptophan-related metabolites, immune-cell assays, animal models, and human plasma biomarkers.8
Source: Groeger et al. (2025)
An animal study compared Bifidobacterium longum 1714™ and Bifidobacterium breve 1205 in relation to stress-related behavior and physiological responses in BALB/c mice.9
Source: Savignac et al. (2014)
A double-blind, randomized, placebo-controlled trial in healthy pregnant women examined oral Bifidobacterium longum 1714™ supplementation from mid-pregnancy until delivery. Cytokine responses were measured in maternal peripheral blood mononuclear cells.10
Source: Killeen et al. (2024)
Research on LGG™ includes human clinical trials and laboratory studies related to cognitive outcomes, health-related quality of life, immune-cell activity, and intestinal models. Findings vary by study design and outcome.
A three-month randomized, double-blind, placebo-controlled trial enrolled 200 adults aged 52–75 and examined cognitive performance following Lactobacillus rhamnosus LGG™ supplementation.11
Source: Sanborn et al. (2020)
A 12-week randomized trial in college students evaluated a combined LGG™ and BB-12™ formulation. Outcomes included upper respiratory symptom duration, symptom severity, functional impairment, and health-related quality of life among participants who developed an infection.12
Source: Smith et al. (2013)
A laboratory study examined the effects of LGG™ cells and LGG-derived soluble factors on antigen-presenting cells from healthy blood donors.13
Source: Fong et al. (2016)
Research using human intestinal enteroids and colonoids examined LGG™ in models of epithelial barrier dysfunction induced by interferon-gamma and fecal supernatants from people with IBS.14
Source: Han et al. (2019)
Research on BB-12™ includes human studies of gastrointestinal measures, laboratory research on epithelial responses, and reviews of the strain's biological characteristics. Findings vary by formulation, outcome, and study design.
A partially blinded, randomized four-period crossover study in 36 healthy adults compared BB-12™ delivered in yogurt smoothies and capsules, measuring gut microbiota, transit time, and fecal short-chain fatty acids.15
Source: Ba et al. (2021)
A study using human intestinal organoid-derived monolayers examined how BB-12™ and LGG™ influenced epithelial antiviral pathways and influenza A virus replication.16
Source: Stepanyan et al. (2026)
A scientific review summarized research on BB-12™, including safety, gastrointestinal survival, and biological characteristics.17
Source: Jungersen et al. (2014)
A review summarized preclinical and clinical research on BB-12™ and proposed mechanisms associated with digestive and immune-related outcomes.18
Source: Collins et al. (2025)
The references include a human study of a three-strain formulation containing UALp-05™ and broader reviews of Lactobacillus plantarum. They provide formulation-level clinical context and species-level background rather than direct evidence specific to UALp-05™.
An 18-week randomized prospective study involving 39 adults with elevated metabolic-syndrome parameters evaluated a three-strain probiotic formulation containing Lactiplantibacillus plantarum UALp-05™, Limosilactobacillus reuteri NCIMB 30242, and Bifidobacterium animalis subsp. lactis B420™. The active intervention ran for 10 weeks.19
Source: Wastyk et al. (2023)
A narrative review surveyed food and health applications of Lactobacillus plantarum, including probiotic properties and proposed biological mechanisms.20
Source: Zare et al. (2024)
A review examined probiotic characteristics and omics-based approaches used to investigate the biology of Lactiplantibacillus plantarum.21
Source: Echegaray et al. (2023)
We consider the exact strain, study design, population, dose, outcome, and limitations when interpreting research.
Published research referenced throughout the Science page is listed below by topic and strain.
Reference Note
Research involving a related strain, species, genus, or multi-strain formulation is identified as such. These studies provide scientific context and do not establish the efficacy of Morning Clarity as a finished product.
Evidence from an exact strain does not necessarily establish that the same outcome will occur with Morning Clarity, as study populations, formulations, doses, durations, and study conditions may differ.
† These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Information on this page is provided for general educational purposes only. It is not medical advice and is not a substitute for consultation with a qualified healthcare professional.
Individual responses may vary. If you are pregnant, nursing, taking medication, or managing a medical condition, consult your healthcare professional before using dietary supplements.
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