Evidence supporting the use of: Damiana
For the health condition: Worry

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Synopsis

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

Damiana (Turnera diffusa) has a long history of traditional use in herbal medicine, particularly in Central and South America. Traditionally, damiana has been used as a tonic for the nervous system, with indigenous peoples and herbalists recommending it to alleviate symptoms of mild anxiety, low mood, and "worry." Its use for emotional well-being and stress relief has been documented in 19th-century Mexican and North American herbal sources, where it was often prepared as a tea or tincture. The rationale behind its use for worry and related symptoms is based on anecdotal reports and the observations of herbal practitioners, rather than on rigorous scientific studies.

Modern research on damiana’s effects specifically on anxiety or worry is limited. Some laboratory studies suggest that damiana may have mild central nervous system activity, possibly through modulation of neurotransmitters like serotonin or GABA, but human clinical trials are lacking. The traditional evidence, while substantial in herbal literature, does not meet current scientific standards for efficacy. Thus, damiana’s use for worry is supported by a rich tradition and historical usage, but not by strong contemporary scientific validation. Anyone considering damiana for emotional support should consult with a healthcare professional, especially since its safety profile is not thoroughly established for long-term use.

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