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SupplementModerate evidenceDigestion

Digestive bitters

Traditional bitter formulas stimulate gastric and biliary secretion.

Why

Traditional bitter formulas stimulate gastric and biliary secretion. EMA monograph covers gentian for digestive complaints. Useful for post-meal heaviness.

How it works

Bitter compounds (gentian, dandelion, artichoke) activate TAS2R bitter receptors on the tongue and gut, stimulating salivary, gastric, and biliary secretion.

How to take

Dosage

Gentian root (comminuted): 0.6–6 g/day in divided doses. Tinctures and combination bitters: follow product label, typically a few drops 15 minutes before meals.

Timing

10–15 minutes before meals

Safety

Avoid in active peptic ulcer disease, gastritis, gastroesophageal reflux, and biliary obstruction. Adults only. Consult a doctor if symptoms persist beyond 2 weeks.

Evidence

At a glance

EMA HMPC monograph registers Gentiana lutea root as a Traditional Herbal Medicinal Product for the symptomatic relief of dyspeptic complaints and loss of appetite, traditional-use registration. Mechanism (bitter activation of TAS2R receptors stimulating gastric and biliary secretion) is well characterised; modern RCT data are limited.

Limitations

No chronic-onset timeline applies, digestive bitters work immediately on the meal they're taken with, not as a chronic therapeutic. EMA gentian registration is traditional-use; physiological plausibility exceeds the RCT base.

Where to get it

Shop Digestive bitters on Amazon

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