How to Settle an Upset Stomach from Coffee
By Steady Matcha Editorial · Founder, Steady Matcha
Published June 21, 2026
Coffee does not help an upset stomach. It worsens it by stimulating gastric acid production and speeding gastric emptying. To settle an upset stomach from coffee: drink water, eat bland food (crackers, toast, banana), take an antacid, and avoid more coffee. Ginger tea can help with nausea. This is general information, not medical advice.
Does coffee help or hurt an upset stomach?
Coffee does not help an upset stomach. It worsens it. Coffee stimulates gastric acid production via gastrin release, relaxes the lower esophageal sphincter (worsening acid reflux), and speeds gastric emptying through chlorogenic acids. These effects cause or worsen stomach pain, nausea, cramping, and acid reflux.
If you have an upset stomach, drinking more coffee will make it worse. The best approach is to stop drinking coffee, drink water to dilute stomach acid, and eat bland food to buffer the acid. This is general information, not medical advice.
Coffee significantly increases gastroesophageal reflux in susceptible individuals - Alimentary Pharmacology and Therapeutics, 2014
How do you settle an upset stomach from coffee?
For immediate relief: drink a glass of water to dilute stomach acid and help flush coffee through your system. Eat bland, alkaline food (crackers, toast, banana, oatmeal) to buffer stomach acid. An OTC antacid (calcium carbonate, such as Tums) neutralizes stomach acid quickly. Ginger tea can help with nausea and cramping.
Avoid lying down, which worsens acid reflux by allowing acid to flow more easily into the esophagus. Avoid more coffee, alcohol, or spicy food until symptoms resolve. Most coffee-induced stomach upset resolves within 1 to 2 hours as the coffee clears your system. This is general information, not medical advice.
How do you prevent an upset stomach from coffee?
The most effective prevention strategies are: always eat before drinking coffee (food buffers acid and slows gastric emptying), switch to cold brew (lower acidity than hot-brewed coffee), reduce your dose, and avoid coffee on an empty stomach.
For people who consistently experience stomach upset from coffee despite these modifications, switching to matcha is the most effective solution. Matcha is less acidic than coffee, does not stimulate gastric acid production the same way, and does not contain the chlorogenic acids that speed gastric emptying. Most people who switch from coffee to matcha report significant improvement in digestive symptoms within 1 to 2 weeks. This is general information, not medical advice.
Looking for energy without the stomach upset? See Steady Matcha.
Steady Matcha - ceremonial grade, Uji Japan, every batch lab-tested. Pre-order the founding batch.
Pre-order - $38Frequently Asked Questions
References
- Coffee and gastroesophageal reflux disease - Alimentary Pharmacology and Therapeutics (2014)
- Coffee and gastrointestinal function: facts and fiction - Scandinavian Journal of Gastroenterology (1999)
Last reviewed: