Synopsis

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

Lactobacillus acidophilus is a probiotic bacterium commonly found in the human vagina, where it helps maintain a healthy balance of microflora. Scientific studies suggest that L. acidophilus contributes to the health of the female reproductive system primarily by producing lactic acid, which lowers vaginal pH and inhibits the growth of pathogenic microorganisms, including Candida species and Gardnerella vaginalis. Clinical trials have shown that oral and intravaginal supplementation with L. acidophilus can reduce the recurrence of bacterial vaginosis and vulvovaginal candidiasis, especially when used alongside conventional antifungal or antibiotic treatments. However, the quality of evidence varies, with some studies showing modest effects and others showing more significant benefits. Notably, systematic reviews and meta-analyses generally support the adjunctive use of lactobacilli-containing probiotics, including L. acidophilus, for maintaining or restoring vaginal health, though they also highlight the need for larger, well-designed trials. Overall, there is moderate scientific validation for the use of L. acidophilus to support the female reproductive system, particularly for maintaining a healthy vaginal microbiome and preventing recurrent infections.

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