Evidence supporting the use of: Dioscorea
For the health condition: Nausea and Vomiting

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Synopsis

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

Dioscorea, commonly known as wild yam, has a long history of use in traditional medicine, particularly in Chinese and Native American herbal practices. It has been used to address a variety of ailments, including gastrointestinal discomforts such as nausea and vomiting. In Traditional Chinese Medicine (TCM), Dioscorea opposita (Chinese yam) is included in formulas intended to strengthen the spleen and stomach, and it is sometimes recommended for symptoms like loss of appetite and mild digestive disturbances. However, its use specifically for nausea and vomiting is more a component of general digestive support rather than a direct antiemetic application. From a scientific perspective, there is very limited research directly evaluating the efficacy of Dioscorea for nausea and vomiting. Most modern studies focus on its phytoestrogenic properties or its potential effects on menopausal symptoms and inflammation, not gastrointestinal symptoms. The active compounds, such as diosgenin, have not been conclusively shown in clinical trials to have antiemetic effects. Therefore, while Dioscorea is traditionally used for digestive support and may be included in herbal blends for symptoms that overlap with nausea and vomiting, there is a lack of robust scientific evidence to substantiate its direct efficacy for these conditions. In summary, Dioscorea’s reputation for treating nausea and vomiting is grounded in traditional practice, and the level of scientific support is weak, warranting a low evidence rating.

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