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Why Does Coffee Make My Stomach Hurt and Poop? Discover the Surprising Truth!

Why Does Coffee Make My Stomach Hurt And Poop

Coffee is a morning ritual for many people, but sometimes it can have adverse effects on our bodies. Bloating and stomach discomfort are common, but why does coffee make your stomach hurt and cause you to poop?

There may be more than one answer to this question. In this article, we’ll discuss the potential causes of coffee-related bellyaches and the solutions that can help you enjoy your cup of joe without any issues.

Caffeine Sensitivities

The scent of a freshly brewed cup of coffee is one of the most inviting and comforting aromas. But for some, that cup of java can lead to uncomfortable side effects.

People who experience caffeine sensitivities may suffer from adverse reactions such as stomachaches and diarrhea after drinking coffee. This sensitivity can be attributed to caffeine withdrawal, which is the body’s reaction to not having the stimulant in its system.

When you drink coffee, your body adapts by increasing production of certain hormones and chemicals, but when it’s taken away, it takes time for your body to readjust. As a result, this transition period can produce unpleasant symptoms like abdominal pain and frequent bowel movements.

Tannins In Coffee

Tannins are a type of polyphenol found in coffee, and they can be responsible for stomach discomfort and irregular bowel movements.

They have a bitter taste, and their structure gives them the ability to bind to proteins, which can disrupt digestion and cause a laxative effect.

Understanding their structure and effects can help us to better understand why coffee can cause these issues.

Let’s take a deeper dive into tannin structure and effects.

Tannin Structure

Tannins are an important component of coffee – but why do they cause stomach issues for some people?

When it comes to tannin structure, it’s all about the size and shape of these molecules.

Tannins are larger than other molecules found in coffee, like caffeine, which makes them more difficult for the gut to break down.

This means that when they pass through the digestive system, they can damage the balance of beneficial gut microflora and disrupt the body’s natural probiotic balance.

The result is often gastrointestinal distress, such as cramps, gas or diarrhea.

So if you’re experiencing coffee-related tummy troubles, it may be worth reducing your intake – at least until your gut gets used to it!

Tannin Effects

Tannins have a variety of effects on the body, many of which are beneficial.

For example, tannins can act as a detoxification agent for the body and help to remove toxins and waste products from the digestive system.

Additionally, tannins may also have a positive effect on digestive health by providing protection against some bacteria and parasites.

Research has even shown that tannins can help to increase nutrient absorption in the gut.

All in all, it’s clear that tannins can be beneficial when consumed in moderation.

As with anything, too much can be detrimental, so it is important to keep your coffee intake at reasonable levels.

Coffee’s Acidity Level

Despite the tannins found in coffee, another culprit for stomach discomfort is its high acidity level.

Coffee’s acidic nature can upset the stomach lining and cause acid reflux, triggering nausea and abdominal pain.

The stomach lining is highly sensitive to acids, and drinking coffee can irritate it.

This often leads to digestive problems such as diarrhea or bloating.

To reduce the potential of experiencing these symptoms, people should consider lowering their intake of acidic beverages like coffee or switching to a less acidic option such as tea.

Additionally, stress and anxiety can also play a role in how our bodies process coffee.

When people become anxious or stressed out, they produce more stomach acid which can impact how their body reacts to coffee consumption.

People who experience high levels of stress may be more likely to experience heightened symptoms after drinking coffee than those who are not under significant amounts of stress.

Stress And Anxiety

John, a thirty-year-old computer programmer, was having trouble with his digestion; he would often experience stomach aches after drinking coffee. After seeing his doctor, John realized that the caffeine in coffee was causing his gut health to suffer and ultimately leading to him experiencing digestive issues.

Here are five ways that coffee can negatively affect your gut health:

* Coffee can reduce your body’s ability to absorb essential vitamins and minerals from food.

* Coffee’s acidity can irritate the lining of the stomach, leading to inflammation and pain.

* Caffeine increases the production of stomach acid, which can cause heartburn or indigestion.

* The diuretic effects of coffee can lead to dehydration, which affects digestion.

* Coffee can increase stress hormones such as cortisol, resulting in decreased immunity and poor digestion.

John changed his diet and lifestyle habits in order to improve his gut health and avoid digestive issues associated with drinking coffee. He started eating more fresh fruits and vegetables while reducing processed foods and avoiding caffeine altogether – this helped him regain a healthy balance in his gut microbiome. With these changes, John no longer experiences any discomfort when he drinks coffee or any other beverage for that matter.

Now that we have discussed how coffee affects gut health, let’s take a closer look at how lactose intolerance can cause digestive issues.

Lactose Intolerance

One possible reason why coffee makes your stomach hurt and cause you to poop is lactose intolerance. This is when the body cannot properly break down lactose, a sugar found in dairy products like milk and cream.

If you experience this after drinking coffee with dairy, try switching to dairy alternatives like almond or soy milk. You can also opt for alternative beverages such as herbal tea or even decaf versions of your favorite coffee drinks.

These alternatives will help reduce any adverse reactions associated with lactose intolerance. Additionally, it’s important to stay hydrated and get enough fiber in your diet to help keep your digestive system healthy.

And don’t forget to check labels on any food or drink items that you purchase to make sure they don’t contain any ingredients that may upset your stomach. Taking these steps should help ensure that you’re able to enjoy your coffee without any unwelcome side effects.


It’s important to understand why coffee can make your stomach hurt and cause you to poop.

In general, it could be caffeine sensitivities, tannins in coffee, the acidity level of the brew, stress and anxiety, or lactose intolerance.

It’s up to each individual to investigate these theories and discover which one applies to them personally.

By understanding what causes this discomfort, we gain a greater appreciation for our bodies and how they react to different types of food and beverages.

When we become more aware of what triggers our body’s response, we can make better decisions about what we put into our system – thus leading us to a healthier lifestyle!

Ellie Patchen

Ellie Patchen

I love a good cup of coffee on Monday mornings for that pick-me-up, also love them in the afternoon, and on Tuesdays. In fact, it's fair to say that I love coffee all day everyday! So much so that I created a whole site to blog about it, answer questions and to just have a place for my frequent ramblings on the wonder that is.. coffee!

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