Bifidobacterium animalis lactis — answers to B. lactis (a probiotic strain)
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A specific strain of bacteria within the Bifidobacterium species, sold as a live-culture probiotic ingredient, often in capsule or powder form.
Why it’s used
Taken to support digestive regularity and gut microbiota balance.
What the evidence is for
stool frequency and consistency in mild functional constipation, strain-dependent.
What the evidence says
Some clinical trials using specific B. lactis strains report modest improvements in stool frequency or consistency, particularly in people with mild constipation, but probiotic effects are strain-specific, and findings from one strain or product do not necessarily apply to another labeled with the same species name. The NIH Office of Dietary Supplements notes that probiotic research is promising but inconsistent across strains and conditions.
Context
Trials typically report dosing in colony-forming units (CFU) rather than a mass unit, commonly in the billions of CFU per day, over several weeks.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.