Why does coffee make me poop but tea doesn't?

Coffee is famous for jump-starting your morning—and sometimes your bowels. If you find that coffee makes you poop but tea doesn’t, you’re not alone. Let’s break down the science behind the “coffee poop” effect, explore why tea behaves differently, and suggest practical steps to manage or use this reaction to your advantage.

Why coffee triggers a bowel movement
Coffee contains several compounds that work together to stimulate your gut:

• Caffeine’s kickstart
– Caffeine boosts the release of the hormone gastrin, which signals your colon to contract.
– It also increases motilin, another hormone that speeds up movement through the digestive tract.

• Gastrocolic reflex amplification
– When your stomach fills with coffee, stretch receptors send a “get moving” message to your colon.
– This natural reflex is more pronounced with coffee than other beverages.

• Chlorogenic acids and N-alkanoyl-5-hydroxytryptamides
– These unique coffee compounds can increase stomach acid and speed up transit time.
– They may prime your colon to push waste out faster than usual.

• Warm liquid effect
– The heat from a hot beverage alone can relax intestinal muscles and promote contractions.

Why tea usually doesn’t have the same effect
While tea also contains caffeine, it tends to be gentler on your system:

• Lower caffeine content
– A typical cup of coffee has 95–165 mg of caffeine, compared to 25–48 mg in black tea.
– Less caffeine means a milder hormonal and motility response.

• Tannins and L-theanine
– Tea’s tannins can slow digestion by tightening gut lining proteins.
– L-theanine has a calming effect on your nervous system, dialing down the urge to go.

• Different acid profile
– Tea is less acidic than coffee, so it doesn’t stimulate as much stomach acid or gastrin.

• Brew time and temperature
– Tea is often steeped at lower temperatures and for shorter times, extracting fewer gut-stimulating compounds.

Individual factors that play a role
Everyone’s digestive system is unique. These variables can amplify or reduce the “coffee poop” effect:

• Gut sensitivity
– Some people have a more reactive gastrocolic reflex.

• Additives in your drink
– Sugar, milk, cream, or non-dairy milks can alter transit time.
– Dairy can be a trigger for those with lactose intolerance.

• Frequency and dose
– Drinking multiple cups back to back or brewing extra-strong coffee intensifies the response.

• Hydration and diet
– Adequate water and fiber help balance motility, while dehydration or low fiber can worsen urgency.

Practical tips to manage or tweak your response
If you love coffee but dread sudden runs to the bathroom—or if you’d like tea to have more of a push—try these adjustments:

• Adjust caffeine load
– Switch to half-caffeinated or lighter roasts.
– Try cold-brew coffee, which extracts less acid.

• Experiment with brew strength
– Use fewer grounds or shorter brewing times for a gentler effect.

• Try different additives
– Adding a bit of cold liquid after brewing can cool the drink and ease motility.
– Consider non-dairy creamers if dairy seems to aggravate.

• Time your intake
– Drink coffee or tea away from your busiest periods of the day.
– Give yourself at least 20–30 minutes before you need to be anywhere without a bathroom.

• Explore alternatives
– Some find that chicory coffee or herbal blends like peppermint tea offer a gentler nudge to the gut.

When to seek professional advice
Most people experience the coffee-poop effect without concerns. However, if you notice any of the following, talk to a doctor:

• Sudden, severe changes in bowel habits
• Blood in your stool or black, tarry stools
• Unexplained weight loss
• Persistent abdominal pain or cramping
• Signs of dehydration (dizziness, extreme thirst)

For a quick check of your symptoms, consider a free, online symptom check, using the doctor approved Ubie Symptom Checker.

Remember, while coffee-induced bowel urges are common, only a healthcare professional can diagnose serious conditions. Speak to a doctor if you have any alarming or persistent issues.