Lactobacillus gasseri

Tier 2 — promising · Weight management · Vaginal microbiome · H. pylori · Visceral fat

A naturally dominant species in healthy vaginal and gut microbiomes with the most consistent weight-management evidence of any probiotic strain. The Kadooka et al. trials (2010 Br J Nutr, 2013 Eur J Clin Nutr) using L. gasseri SBT2055 found 4–5% reductions in visceral fat and waist circumference after 12 weeks. Noteworthy caveat: nearly all positive SBT2055 evidence comes from a single research group (Snow Brand Milk / Megmilk), so independent replication is still limited. Also colonises the vaginal epithelium and reduces bacterial vaginosis recurrence in multiple trials. In H. pylori…

Dose: 10⁹–10¹⁰ CFU/day of L. gasseri SBT2055 or equivalent identified strain; taken with a meal for best survival