Synopsis

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

Anise (Pimpinella anisum) has been traditionally used in various cultures to address digestive issues, including bloating, flatulence, and indigestion. However, more recently, its use for Irritable Bowel Syndrome (IBS) has received some scientific attention. The primary scientific rationale is based on anise’s antispasmodic, carminative, and mild anti-inflammatory properties, which may help alleviate common IBS symptoms such as abdominal pain and bloating.

A small number of clinical studies have evaluated the effectiveness of anise in IBS. For example, a randomized double-blind placebo-controlled trial published in 2016 found that anise oil significantly improved IBS symptoms compared to placebo, particularly in reducing abdominal pain and bloating. The proposed mechanism involves relaxation of intestinal smooth muscle and modulation of gut motility, perhaps due to compounds like anethole.

Despite some promising results, the overall body of scientific evidence remains limited. Most studies have small sample sizes, short durations, and varying formulations of anise (oil, extract, or tea), making it difficult to draw definitive conclusions. Thus, while there is emerging scientific support, the evidence is not robust or comprehensive enough to warrant a higher rating. More large-scale, high-quality clinical trials are needed to confirm its efficacy and safety for IBS.

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