A study that included yarrow as a component of a multi-herb capsule (in combination with Boswellia and ginger) for irritable bowel syndrome found that, when this combination was taken once every 8 hours over a month, male participants saw statistically significant improvements in quality-of-life scores; however, overall reductions in average symptom severity, anxiety, and depression scores were not strong enough to recommend yarrow for this condition.[1] Beyond this, only preclinical evidence exists to suggest that achilleas (A. Millefolium and A. nobilis) administered to rats could aid in reducing both peptic ulcers[2] and stomach cramping.[3][4] Again, clinical studies are needed before these results may be translated to human use.
Does yarrow help with gastrointestinal function?
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•Last Updated: May 16, 2025
A study involving yarrow in a multi-herb capsule for irritable bowel syndrome showed some improvements in quality-of-life scores for male participants, but the overall symptom severity reductions were not significant enough to recommend yarrow for this condition. Additionally, preclinical evidence suggests potential benefits for gastrointestinal issues in rats, but further clinical studies are necessary to confirm these effects in humans.