ist bier gut für die verdauung — what are common causes?

Whether beer is good for digestion is not straightforward. In moderation – especially non-alcoholic or traditionally brewed beer – bitter compounds, polyphenols, and soluble fiber may stimulate gastric acid secretion and support gut microbiota. Some studies suggest mild prebiotic effects. However, regular or excessive consumption irritates the gastric mucosa, causes bloating, heartburn, and diarrhea, and disrupts the intestinal barrier. The most common causes of digestive issues are unrelated to alcohol: poor diet (low fiber, high fat/sugar), chronic stress, lack of exercise, food intolerances (lactose, fructose, gluten), infections, and medications. The provided context does not address beer or digestion – it covers DNA tests, MC1R, and PCSK9. Therefore, this answer relies on general medical knowledge. Evidence grade: unclear (no direct sources in context).