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May, 2024
June, 2024
Learn why you should start your probiotics journey with Bio-K+
Our scientifically proven formulas are designed to support your unique health journey
Psychobiotics are an emerging category within probiotic science: probiotics and prebiotics studied for their potential to interact with the gut-brain axis and influence mental health-related outcomes. The term was coined in 2013 by Professor Ted Dinan at University College Cork, in a paper published in Biological Psychiatry that has since been cited more than 1,800 times. The foundational definition focused on live organisms that, when consumed in adequate amounts, may produce a health benefit in individuals with psychiatric conditions; subsequent research has expanded the concept to include any probiotic or prebiotic with documented gut-brain interactions.
Psychobiotics for mental health represent one of the most actively studied areas in microbiome science today. Lactobacillus and Bifidobacterium genera are the most frequently studied in this field. The research is promising and growing, but probiotics are a supportive tool, not a replacement for professional mental health care. Always consult your healthcare practitioner before starting any new supplement.
Understanding psychobiotics and the gut-brain axis requires grasping the underlying mechanisms. The gut-brain axis is a bidirectional communication system linking the gastrointestinal tract and the central nervous system through three primary pathways: neurotransmitter synthesis, HPA axis modulation, and immune-inflammatory signaling. Approximately 90 to 95 percent of the body's serotonin is produced in the gut, not the brain. Gut bacteria influence serotonin and GABA synthesis, as well as HPA axis activation, which governs the body's cortisol response to stress. This mechanistic foundation is why Lactobacillus and Bifidobacterium strains have become the focus of psychobiotic research. Bio-K+ has published 16 clinical trials and 45+ peer-reviewed publications on its three-strain formula over more than 30 years of fermentation science, establishing a research credibility foundation that generic probiotic supplements cannot match.
When evaluating the best psychobiotics for anxiety and stress, selection criteria matter as much as the category label. Psychobiotic supplements should carry identified strain codes on the label, a CFU count guaranteed until the expiry date rather than at manufacture, targeted-release capsule technology for gastrointestinal survival, and certifications such as vegan, gluten-free, and non-GMO. Bio-K+ Sensoril® Stress Support Capsules contain 25 billion CFU of a three-strain formula, along with Sensoril®, a patented ashwagandha extract. The confirmed US claims are: "Helps promote the support of occasional sleeplessness and everyday stress" and "Delivers high-quality probiotics to the digestive system."†
†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.
What are psychobiotics? The term was coined by Professor Ted Dinan, University College Cork, in 2013, in a paper cited more than 1,800 times. Psychobiotics are probiotics, primarily from the Lactobacillus and Bifidobacterium genera, studied for their potential to interact with the gut-brain axis and influence mental health-related outcomes. The definition has expanded to include prebiotics and other microbiome approaches. Research is promising but not definitive. Probiotics are a supportive tool, not a replacement for professional mental health care. Consult your healthcare practitioner.
Psychobiotics interact with the gut-brain axis through three primary mechanisms: neurotransmitter synthesis, HPA axis modulation, and immune-inflammatory signalling. Approximately 90 to 95 percent of the body's serotonin is produced in the gut; gut bacteria influence both serotonin and GABA synthesis, and gut microbiome composition affects the HPA axis, which governs the body's cortisol response to stress. These pathways are the biological foundation of psychobiotics research. All mechanism content is general educational science; no product claim is being made about any specific probiotic strain.
All psychobiotics are probiotics, but not all probiotics are psychobiotics. The distinction is research scope, not formulation. A probiotic is any live microorganism that, when consumed in adequate amounts, confers a health benefit. A psychobiotic is a probiotic specifically studied in the context of gut-brain axis interactions and mental health-related outcomes. Lactobacillus and Bifidobacterium are the most studied genera in both conventional probiotic and psychobiotics research. Consult your healthcare practitioner before using any probiotic or psychobiotic supplement for mental health purposes.
Five criteria distinguish well-researched psychobiotic supplements. First, strain codes should appear on the label by name. Second, the CFU count should be guaranteed until the expiry date, not only at manufacture. Third, targeted-release capsule technology supports survival through stomach acid. Fourth, check certifications: vegan, gluten-free, non-GMO. Fifth, look for an FDA-registered facility on US products. Bio-K+ Sensoril® Stress Support Capsules satisfy all five, delivering 25B CFU alongside Sensoril® ashwagandha.† Consult your healthcare practitioner before starting. †See FDA disclaimer.
Lactobacillus and Bifidobacterium genera are the most frequently studied in psychobiotic research, though findings are strain-specific rather than universal to the genus. This means a study on one strain doesn't necessarily apply to another, even within the same species. Bio-K+ Sensoril® Stress Support Capsules contain an identified three-strain formula at 25 billion CFU, guaranteed until the expiration date, alongside Sensoril®.*
*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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