Lactobacillus salivarius
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A species of Lactobacillus bacteria naturally found in the human gut and mouth, used as a probiotic strain in some supplements.
Why it’s used
Taken to support digestive or oral microbial balance, depending on the specific strain and product.
What the evidence says
Research on Lactobacillus salivarius is strain-specific and limited in scale; some small trials suggest possible effects on gut symptoms or oral bacteria, but findings vary by exact strain and have not been confirmed in large, well-controlled trials. NIH's Office of Dietary Supplements notes that probiotic effects generally do not generalize across species or strains.
Context
Where benefits have been reported, they are tied to the specific bacterial strain and dose used in that trial, not to Lactobacillus salivarius as a category.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.