Evidence supporting the use of: Alfalfa
For the body system: Kidneys

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Alfalfa (Medicago sativa) has a long history of use in traditional herbal medicine, primarily as a general tonic and nutritive herb due to its rich content of vitamins and minerals. In some traditional systems, particularly in Western herbalism, alfalfa has been used to “support the kidneys” and as a mild diuretic. Historical texts and herbals describe its use to encourage urine flow and to help “cleanse” the urinary tract, which led to the association with kidney support. However, this use is based on tradition rather than robust scientific evidence.

Contemporary scientific studies on alfalfa have focused mostly on its cholesterol-lowering effects, antioxidant properties, and potential in supporting blood sugar control. There is minimal to no high-quality clinical research specifically evaluating alfalfa’s effects on kidney function or kidney health in humans. Some animal studies suggest mild diuretic effects, but these are not well characterized or directly linked to measurable improvements in kidney health. Thus, the traditional use of alfalfa for kidneys is not strongly corroborated by modern scientific research. Alfalfa is not recognized as a kidney-supportive supplement in evidence-based medical guidelines.

In summary, alfalfa’s use for kidney support is rooted in traditional herbal practice, with very limited scientific validation. Its evidence rating for this use is low.

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