Digestive bitters (gentian, artichoke, dandelion, etc.) activate bitter taste receptors (T2Rs) in the gut, yes, your GUT has taste receptors.
T2R activation stimulates: gastric acid secretion, bile flow (choleretic), pancreatic enzyme release, and GLP-1 secretion.
The mechanism was validated when T2R receptors were identified in enteroendocrine cells in 2003. Bitters before meals improve digestion through this physiological reflex.
Iberogast® (9-herb bitter formula) is the most-studied product: reduced functional dyspepsia symptoms by 68% in a 2004 RCT. Traditional but with genuine mechanistic basis.
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*Reviewed by the Avelor Research Team and Clinical Advisory Board*
*Last updated: 2026-04-06*