Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Lactobacillus reuteri is a probiotic bacterium that has been studied for its potential benefits to the female reproductive system, particularly in supporting vaginal and urinary tract health. Scientific research indicates that certain strains of L. reuteri can help restore and maintain a healthy vaginal microbiota by increasing populations of beneficial lactobacilli, which in turn help to lower pH and inhibit the growth of pathogenic organisms. Several clinical trials have examined the use of L. reuteri (often in combination with Lactobacillus rhamnosus) for preventing and treating bacterial vaginosis (BV) and vulvovaginal candidiasis, with results showing modest improvements in recurrence rates and symptom relief compared to placebo or standard treatments alone (Reference).

However, not all studies have found significant benefits, and the effectiveness may depend on the specific strain used (such as L. reuteri RC-14). Additionally, while there is supportive evidence for its role in vaginal health, there is less robust evidence for effects on broader aspects of the female reproductive system, such as fertility or menstrual regulation. Overall, the current scientific evidence justifies the use of L. reuteri for maintaining vaginal health and preventing recurrent infections, but more large-scale, high-quality trials are needed to confirm its efficacy and define optimal usage.

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