Synopsis

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

Cordyceps has a long history of use in Traditional Chinese Medicine (TCM) for supporting the kidneys and treating kidney-related ailments. In TCM, the "kidney" encompasses a broader concept than the anatomical organ, including aspects of vitality, reproductive health, and aging. Cordyceps is traditionally classified as a kidney tonic, believed to enhance kidney function, boost energy, and improve longevity. Historical texts and herbal compendiums, such as the Ben Cao Bei Yao and Chinese Materia Medica, describe its use for symptoms interpreted as "kidney deficiency," including fatigue, weakness, sexual dysfunction, and lower back pain.

Modern scientific studies provide limited but emerging evidence for cordyceps' effects on kidney health, mostly in animal models and small human studies. Some research suggests that cordyceps extracts may help reduce kidney damage from toxins or drugs, improve kidney function markers, and alleviate symptoms in chronic kidney disease. However, these findings are preliminary, and larger, high-quality clinical trials are lacking. Thus, the primary justification for using cordyceps to support the kidney system is based on traditional use, with some early scientific support but not enough to provide strong validation.

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