Synopsis

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

Cyperus rotundus, commonly known as nut grass or "motha," has a long history of use in traditional medicine systems such as Ayurveda, Traditional Chinese Medicine (TCM), and Siddha. In these systems, nut grass rhizomes have been employed to treat a variety of digestive ailments, including dyspepsia (indigestion). Traditionally, it is believed to relieve stomach discomfort, bloating, and flatulence, and to stimulate digestive fire or "agni." Ayurvedic texts such as the Charaka Samhita and Sushruta Samhita mention its use for "grahani" (digestive disorders) and related symptoms.

Modern scientific research on Cyperus rotundus for dyspepsia is limited but growing. Some in vitro and animal studies indicate that its extracts possess antispasmodic, anti-inflammatory, and carminative properties, which could theoretically help with symptoms of indigestion. For example, studies have shown that nut grass may reduce gastric motility and protect the gastric mucosa in animal models. However, robust clinical trials in humans are lacking, and the evidence remains preliminary.

In summary, the use of nut grass for dyspepsia is primarily justified by tradition, with some low-to-moderate level preclinical support but insufficient high-quality clinical evidence. Therefore, it receives a mid-low evidence rating (2/5), reflecting its widespread historical use and limited, but suggestive, scientific findings.

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