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What causes a bloated stomach, and what can you do about it?

September 12, 2025AUTOREN/-INNEN Maike Barocke, Hanna BrecknerReading time: 4 Minuten

A bloated stomach isn’t just uncomfortable—it can also significantly affect your daily well-being. Many people are familiar with the feeling of a hard, tight stomach, clothes that suddenly feel tighter, and a sensation of fullness that robs you of any sense of lightness. These symptoms often occur after eating, when digestion is in full swing. There are various underlying causes: from certain dietary habits and stress to digestive disorders or food intolerances, such as lactose intolerance. An imbalance in gut flora (dysbiosis) can also play a significant role, as it affects nutrient processing, which can lead to increased gas production.

The good news: In most cases, a bloated stomach is no cause for concern and can be effectively relieved. In this article, learn about the possible causes and the steps you can take to reduce discomfort and improve your well-being in the long term.

What are the typical causes of a bloated stomach?

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A bloated stomach can have many different causes—some are obvious, while others are less so. Diet often plays a key role: legumes, cabbage, and carbonated beverages produce large amounts of gas during digestion, leading to a bloated stomach. Eating habits such as wolfing down food or chewing gum frequently can also contribute to this, as they cause you to swallow a lot of air. Stress is another important factor, as it affects bowel movements, alters stomach acid production, and slows down digestion overall. 

The gut flora also plays a crucial role: If it becomes unbalanced, digestion is often less efficient, and more gas is produced. Finally, food intolerances such as lactose or fructose intolerance can also cause symptoms, as certain sugars are not digested properly and begin to ferment in the gut.

An Overview of Common Triggers:

  • Diet: foods that are hard to digest or cause bloating
  • Stress: physical and psychological pressures that interfere with digestive processes
  • Imbalanced Gut Flora: Gas Formation, Exacerbated by Imbalance
  • Intolerances: e.g., lactose or fructose intolerance

What role does gut flora play in bloating?

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The gut flora—also known as the gut microbiome—consists of billions of microorganisms that work together in the gut. These break down soluble fiber, strengthen the intestinal lining, produce vitamins, and keep pathogens at bay. However, if this delicate balance is disrupted—for example, by antibiotics, stress, or an unbalanced diet—the condition is known as dysbiosis. In such cases, gas-producing bacteria often gain the upper hand, while beneficial bacteria are displaced. The result: food residues ferment more intensely, leading to increased gas production — which manifests as a bloated stomach and a feeling of fullness.

Here's how you can specifically support your gut flora:

  • A diet rich in fiber (e.g., vegetables, fruit, whole-grain products, flaxseed) provides nourishment for beneficial bacteria.
  • Fermented foods (such as sauerkraut, kimchi, kefir, and unpasteurized yogurt) introduce additional health-promoting microorganisms into the gut.
  • A probiotic, such as Pro EM san, specifically introduces beneficial gut bacteria.
  • A prebiotic, such as Pro Präbioma, contains soluble dietary fiber that serves as “food” for the good bacteria in the gut.
  • Stress relief (meditation, yoga, breathing exercises) helps stabilize the gut flora.

How does lactose intolerance affect bloating?

A woman is holding a large glass of plain yogurt and scooping out a full spoonful; Image note: AI-assisted content

Lactose intolerance is one of the most common food intolerances and is a trigger for bloating in many people affected by it. It is caused by a deficiency of lactase, the enzyme that breaks down milk sugar (lactose) in the small intestine. If too little lactase is produced, the lactose reaches the large intestine undigested. There, it is fermented by bacteria—a process that produces gases such as hydrogen, methane, and carbon dioxide, which cause bloating, abdominal pain, diarrhea, or nausea. These symptoms occur particularly after consuming dairy products.

Here's how you can reduce lactose-related symptoms:

  • opt for lactose-free alternatives (e.g., milk, cheese, yogurt)
  • Check ingredient lists to avoid hidden lactose in processed foods
  • If necessary, use lactase supplements to aid digestion—or opt for a more comprehensive digestive enzyme formula, such as Pro Enzym by TISSO. In addition to lactase, Pro Enzym by TISSO contains many other enzymes that can further promote nutrient absorption.

In addition, probiotics can be helpful. Certain strains, such as Lactobacillus acidophilus or Bifidobacterium longum, aid in the digestion of lactose by simultaneously providing the enzyme lactase. Probiotics, such as our Pro EM san, strengthen the microbiome, can improve an individual’s tolerance to lactose, and thereby significantly alleviate symptoms.

Can probiotics help with bloating?

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Probiotics can be a valuable aid in relieving bloating and stabilizing digestion. They help maintain the balance of gut flora, promote beneficial bacteria, and inhibit unwanted bacteria. This reduces gas buildup and improves digestive comfort. Strains such as Lactobacillus and Bifidobacterium are particularly effective, as they specifically help relieve digestive discomfort.

Pro EM san by TISSO contains 31 probiotic bacterial cultures —combined with a fermented extract of 24 herbs and plants. Each daily serving provides approximately 30 billion active microorganisms as well as valuable metabolic byproducts from the fermentation process. Pro EM san pur is available as a version with reduced herbal content.

If you want to do something even more comprehensive for your gut, try the Probiotics Gut Cure Original or the Pure Probiotic Gut Treatment. These packages combine Pro EM san withPro Präbioma and Pro Mucosa, or Pro EM san pur with Pro Präbioma and Pro Mucosa—gut bacteria, soluble fiber, and nutrients for the intestinal mucosa. This formula was specifically developed by our scientific team.

Conclusion: Getting Bloating Under Control for the Long Term

A bloated stomach may be annoying, but with the right measures, it can usually be easily prevented or significantly alleviated. It’s important to identify your personal triggers and address them specifically—whether it’s diet, stress, or an imbalance in gut flora. Even small steps, such as eating slowly and mindfully and avoiding foods that cause significant bloating (e.g., cabbage, legumes, carbonated beverages), can make a noticeable difference. Regular relaxation techniques like yoga and meditation are also very effective.

The gut flora also plays a key role. Probiotics can provide valuable support here: With Pro EM san or Pro EM san pur, you can specifically strengthen your gut flora as part of your daily routine.  If you’d like even more comprehensive support for your gut, the Probiotic Gut Treatment Original or the Probiotic Gut Treatment Pure offer a holistic approach with probiotics, prebiotics, and nutrients for the intestinal mucosa.

Here's how you can improve your intuition step by step—and find greater ease and well-being in the long run.

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FREQUENTLY ASKED QUESTIONS

Common causes include swallowing more air while eating, gas-producing foods such as legumes, cabbage, or carbonated beverages, as well as food intolerances. An imbalance in gut flora or stress can also increase gas production in the intestines. Keeping a food diary can help you better identify your personal triggers. A targeted gut restoration program, such as the Probiotics Gut Cure Original with probiotics, prebiotics, and nutrients for the mucous membranes.

The gut flora plays a key role in digestion. If it becomes unbalanced, it often leads to increased gas production. Probiotics can help restore balance and reduce bloating. Fermented foods (e.g., sauerkraut, yogurt, kefir) and prebiotics (e.g., inulin) also help strengthen beneficial gut bacteria.

Yes, stress slows down digestion and promotes gas buildup. It alters bowel movements and can disrupt the balance of gut flora. Relaxation techniques such as yoga, meditation, or breathing exercises, as well as getting enough exercise, help relieve pressure on the intestines and prevent bloating.

There are certain foods that can help reduce a bloated stomach. Ginger is known for its digestive properties and can be consumed as tea or added to dishes. Fennel seeds are also effective and, when brewed as tea, can aid digestion. Peppermint tea relaxes the intestinal muscles and can relieve bloating. Pineapple also contains enzymes that aid digestion. A balanced diet rich in Dietary Fiber and contains minimally processed foods, supports gut health, and can help prevent excessive gas.

Yes, probiotics help stabilize the gut flora and can therefore reduce bloating. Strains such as Lactobacillus and Bifidobacterium. TISSO offers a variety of options featuring high-quality dietary supplements that support gut flora and overall gut health: Pro EM san containing 31 bacterial cultures and 24 fermented herbs and plants, Pro EM, pure and simple as a version with fewer herbs, as well as the Probiotics Gut Cure Original or Probiotics Gut Cure Pur, which also contain prebiotics and nutrients for the intestinal mucosa.

RELATED PRODUCTS

Pro EM san—Packaging
Pro EM san bottle; features: monthly supply, histamine-free, yeast-free, proprietary bacterial strain
Price: 44,95 €
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Pro Präbioma—Packaging
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Price: 41,95 € 1 kg = 139,83 €
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Pro Mucosa—Packaging
Pro Mucosa bottle containing several capsules; features: monthly supply, gluten-free, fructose-free, histamine-free
Price: 76,95 € 1 kg = 415,95 €
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