Lactobacillus gasseri
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A species of lactic-acid-producing bacteria naturally found in the human gut and used as a probiotic strain in supplements, typically grown by fermentation and freeze-dried into capsules.
Why it’s used
Taken to support digestive and gut health, and studied in some trials for a possible role in body-fat and weight measures.
What the evidence is for
modest changes in abdominal fat in some short-term trials.
What the evidence says
The NIH Office of Dietary Supplements notes that probiotic effects are strain- and dose-specific. A number of small trials on Lactobacillus gasseri have reported modest reductions in abdominal fat, but results are inconsistent and sample sizes are small, so the evidence is considered preliminary rather than settled.
Context
Trials reporting effects on body fat have generally run 12 weeks or longer using fermented milk or capsule delivery; doses are reported in colony-forming units rather than a mass amount.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.