Ginger and gastric reflux (GERD): what the science says

Gastroesophageal reflux affects 20-30% of the European population. The question “does ginger help or make reflux worse?” is complex. The response depends on the dose and the mechanism.

What helps: the prokinetic effect

GERD is often caused by slow gastric emptying — the stomach stays full too long, gastric pressure increases, and the lower esophageal sphincter (LES) opens.

Wu et al. (2008) show that ginger accelerates gastric emptying by +25%. By emptying the stomach faster, the pressure that causes reflux decreases.

What can make it worse: direct irritation

In large doses or on an irritated stomach, ginger can cause heartburn in some sensitive people. Gingerol has a thermogenic effect which, on an already inflamed esophageal mucosa, may be poorly tolerated.

The consensus

Location	Effect of ginger	Recommendation
GERD linked to slow emptying	Beneficial (prokinetic)	Small dose before meals
GERD with esophagitis	Risk of irritation	Avoid on an empty stomach, dilute a lot
Mild occasional GERD	Generally beneficial	10-15ml well diluted before the meal
Severe GERD on PPI	Varies	Consult gastroenterologist

Protocol for mild GERD

• Reduced dose: 10ml (not 20ml) diluted in 250ml of water
• Timing: 20-30 min before the meal (not on an isolated fast)
• Temperature: lukewarm water (not hot — heat relaxes the SELF)
• Progressive test: start with 5ml and increase if well tolerated

In practice

TheINTI Essence is a concentrate — you control the dilution. For GERD, dilute further (10ml in 250ml of water). Turmeric (choleretic) and black pepper add complementary digestive benefits.