Evidence supporting the use of: Lactococcus rhamnosus
For the health condition: Urinary Tract Infections

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Synopsis

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

Lactobacillus rhamnosus (often still referred to as Lactobacillus but now classified as Lacticaseibacillus rhamnosus) is a probiotic bacterium that has been studied for its role in supporting urinary tract health, particularly in the prevention of recurrent urinary tract infections (UTIs). The rationale centers on the ability of certain probiotic strains, especially those in the Lactobacillus genus, to colonize the vaginal and periurethral mucosa, thereby inhibiting the growth and adhesion of uropathogenic bacteria such as Escherichia coli.

Several clinical trials and systematic reviews have evaluated the effects of L. rhamnosus GR-1, often in combination with L. reuteri RC-14, for UTI prevention. Some studies report a reduction in recurrence rates, especially in women with a history of frequent UTIs. However, the magnitude of the benefit is generally modest, and results are not universally consistent. The 2017 Cochrane review (link) concluded that while probiotics may reduce the risk of recurrent UTIs, the quality of evidence is low to moderate, and further high-quality trials are needed. Probiotics are not recommended as a primary or sole therapy for active UTI treatment, but may be considered as adjunctive or preventive strategies, particularly for those seeking alternatives to antibiotics.

In summary, there is some scientific basis for the use of L. rhamnosus in UTI prevention, but the evidence is not strong enough to warrant a high rating or unequivocal endorsement.

More about Lactococcus rhamnosus
More about Urinary Tract Infections

Products containing Lactococcus rhamnosus

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