Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Lactobacillus salivarius is a probiotic bacterium that has been investigated for its potential to support urinary tract health, including the prevention or adjunct treatment of urinary tract infections (UTIs). The rationale for its use is based on the general principle that probiotics—specifically, Lactobacillus species—can help restore or maintain healthy vaginal and urogenital flora, thereby reducing colonization by uropathogens such as Escherichia coli.

There is some scientific evidence suggesting that Lactobacillus species (notably L. rhamnosus, L. reuteri, and L. crispatus) may reduce the risk of recurrent UTIs, primarily by producing lactic acid and bacteriocins, lowering pH, and competitively inhibiting pathogen adherence. L. salivarius specifically has been shown in in vitro studies to inhibit uropathogen growth and adhere to urogenital epithelial cells. However, most clinical studies focus on other Lactobacillus strains, and robust clinical trials on L. salivarius for UTI prevention or treatment are limited.

Thus, while there is a plausible scientific basis for the use of L. salivarius in supporting urinary tract health, direct high-quality clinical evidence for its efficacy in treating or preventing UTIs is currently weak. It is more often included in probiotic blends aimed at urogenital health based on its general probiotic properties and promising laboratory findings, rather than conclusive human trial data. More research is needed to clarify its specific benefits for UTIs.

More about Lactobacillus salivarius
More about Urinary Tract Infections

Other ingredients used for Urinary Tract Infections

Other health conditions supported by Lactobacillus salivarius

Products containing Lactobacillus salivarius

Nature's Sunshine Eleven Elevated (NutriBiome)
Nature's Sunshine Probiotic Eleven
Nature's Sunshine Sunshine Heroes Probiotic Power