Synopsis

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

Rehmannia (often spelled "Rhemannia" in error) is a traditional herbal remedy, primarily used in Traditional Chinese Medicine (TCM) to support the reproductive system as well as the kidneys and adrenal glands. In TCM, Rehmannia root (particularly Rehmannia glutinosa) is considered a key tonic herb for nourishing "yin," replenishing blood, and supporting fertility, menstrual health, and vitality. It is frequently included in classic herbal formulas such as Liu Wei Di Huang Wan, which is prescribed for symptoms like irregular menstruation, infertility, and menopausal complaints—all related to the reproductive system.

Despite its prevalent traditional use, modern scientific evidence supporting Rehmannia’s direct effects on the reproductive system is limited. Most available studies focus on its anti-inflammatory, immunomodulatory, and nephroprotective properties rather than reproduction specifically. Some animal studies hint at hormonal balancing effects, but robust clinical trials in humans are lacking.

In conclusion, Rehmannia’s use for reproductive health is primarily justified by its longstanding role in traditional medicine systems. The scientific evidence base is still emerging and currently insufficient to rate it higher for evidence-based support in this context.

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