Darmgesundheit durch fermentierte Lebensmittel

Intestinal health through fermented foods

Inga Riffelmann

What are fermented foods?

Fermentation is a process in which bacteria convert sugar into lactic acid, acetic acid, carbon dioxide, or alcohol. Fermentation processes are used daily in the food industry, for example in the production of cheese, yogurt, or sauerkraut. Fermentation is used to preserve food and was already practiced in the Stone Age. Acidifying the pH value of food makes it more difficult for other bacteria to grow and prevents the food from spoiling as quickly.

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Benefits of Fermentation

A major benefit is the extended shelf life of foods. The production of lactic acid and acetic acid also supports gut health. Lactic acid lowers the pH in the intestines, making it harder for harmful bacteria to settle. Acetic acid not only acts as a preservative but also lowers the pH, stimulates appetite, and positively influences glucose and fat metabolism. The high content of lactic acid bacteria supports the body's own gut bacteria in displacing harmful germs and has a positive effect on the immune system.

Fermented Foods

Among the best-known fermented foods are yogurt, sauerkraut, sourdough bread, as well as beer and soy sauce. Kefir, miso, kombucha, and tempeh are also fermented but are less common in German cuisine.

Kefir originally comes from the Caucasus and is made from cow's or goat's milk using kefir grains. During this process, milk sugar is fermented and the hard-to-digest casein is partially broken down.

Miso is a Japanese paste made from soybeans, steamed rice or barley, and the fungi Aspergillus flavus var. oryzae and Aspergillus sojae.

Kombucha is produced by fermenting sweetened tea with a so-called kombucha culture, a symbiotic combination of yeasts and acetic acid bacteria.

Tempeh comes from Indonesia and is made from cooked soybeans and various mold species.

Additional Benefits of Fermented Foods

Fermented foods contain many vitamins, minerals, and dietary fiber. Fiber stimulates bowel activity, promotes the excretion of toxins and waste, and can reduce the risk of colon cancer. The microorganisms they contain, such as lactic acid bacteria and yeasts, support the natural balance of the gut microbiota and strengthen the immune system by producing anti-inflammatory signaling molecules.

Conclusion

Gut health can be specifically supported through fermented foods such as sauerkraut, sourdough bread, kefir, miso, or kombucha. During fermentation, valuable bacterial cultures and yeasts are formed, which positively influence the natural gut microbiota. At the same time, anti-inflammatory signaling molecules are produced, the intestinal pH is lowered, and the immune system is strengthened. Additionally, fermented foods provide important vitamins, minerals, and dietary fiber, which promote bowel activity and support regular bowel movements.

Here is our fermented gut cleanse.

Über den Autor/die Autorin

Inga Riffelmann

Inga Maria Riffelmann is a naturopathic practitioner , biological-technical assistant (BTA) , and certified nutritional consultant . With her broad training, she combines naturopathic expertise with sound scientific know-how . As a research associate at HLH BioPharma , she works at the interface between research and practice , contributing her expertise particularly to the development and evaluation of nutritional medicine concepts . Her special focus is holistic health – always considering scientific principles and individual needs .

Portraitaufnahme von Inga Riffelmann