Evidence supporting the use of: Parsley
For the health condition: Cramps and Spasms

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Synopsis

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

Parsley (Petroselinum crispum) has a long history of use in traditional herbal medicine, including in the treatment of cramps and spasms. In various folk medicine systems, parsley has been used for its purported antispasmodic properties—meaning it was thought to help relieve involuntary muscle contractions. This is largely based on empirical use rather than robust scientific validation.

Traditional texts occasionally recommended parsley tea or extracts for menstrual cramps, intestinal spasms, and other discomforts attributed to muscle contractions. The rationale behind its use is believed to stem from the presence of certain volatile oils, such as apiol and myristicin, which have been speculated to exert mild smooth muscle relaxing effects. However, these claims are not well substantiated by modern clinical trials. Most available evidence comes from animal studies or in vitro experiments, which are insufficient to confirm efficacy in humans.

Scientific reviews and regulatory agencies generally consider the evidence for parsley's antispasmodic effects to be weak or anecdotal. While it is safe in culinary amounts, medicinal use—especially in large doses—has not been conclusively shown to alleviate cramps or spasms, and may present risks due to the concentration of its active compounds. Thus, while the traditional use exists, the quality and relevance of supporting evidence are low.

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