Synopsis

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

Hyacinth bean (Lablab purpureus) has been used in traditional Chinese medicine (TCM) for centuries, particularly to address digestive ailments and to help manage symptoms associated with colds, especially when fever is present. In TCM, hyacinth bean (known as "Bai Bian Dou") is believed to "strengthen the spleen" and "clear summer heat," making it a supportive ingredient for conditions characterized by fever, mild chills, and digestive upset. It is often included in herbal formulas alongside other botanicals to help alleviate symptoms such as diarrhea, nausea, and mild fever, which can accompany some viral infections such as colds.

Scientific research on hyacinth bean regarding its role in treating colds and fever is limited. While some laboratory studies have reported general antimicrobial and anti-inflammatory properties of extracts from the bean, robust clinical trials in humans are lacking. Thus, its use is primarily based on traditional knowledge rather than modern scientific validation. The evidence rating is 2, reflecting the presence of traditional use, but only preliminary or indirect scientific support. Individuals considering hyacinth bean for colds and fever should consult a healthcare provider, especially since the seeds are toxic unless properly prepared.

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