Synopsis

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

Calamus rhizome (Acorus calamus) has a long-standing history of use in traditional systems of medicine, including Ayurveda, Traditional Chinese Medicine, and various folk practices. It is described as an aromatic, bitter, and carminative herb, commonly used to address digestive issues such as bloating, flatulence, and belching. The rationale behind its traditional use lies in its reputed ability to stimulate gastric secretions and improve digestion, thus potentially reducing discomforts such as belching. Classical Ayurvedic texts mention calamus (known as "Vacha" in Sanskrit) for its "deepana" (appetizer) and "pachana" (digestive) properties, which indirectly address symptoms like belching by promoting efficient digestion and reducing the accumulation of undigested food and gas.

However, modern scientific validation for these specific effects is limited. While some phytochemical studies have demonstrated spasmolytic, carminative, and anti-inflammatory effects in vitro or in animal models, robust clinical trials directly evaluating calamus rhizome for belching in humans are lacking. Due to the presence of β-asarone, a compound with known toxicity, calamus is also subject to regulatory restrictions in several countries. In summary, the use of calamus rhizome for belching is primarily rooted in traditional practice, with only modest indirect scientific support and limited clinical evidence.

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