haben bananen viele ballaststoffe — when to see a doctor?

Bananas provide about 2.6 g of fiber per 100 g, which is a moderate amount. Their soluble fiber (pectin) supports digestion, but in sensitive individuals – especially those with irritable bowel syndrome or fructose malabsorption – they can trigger bloating. You should see a doctor if you experience persistent or severe bloating, abdominal pain, diarrhea, constipation, or changes in bowel habits after eating bananas or other high‑fiber foods. Unexplained weight loss, blood in stool, or ongoing digestive discomfort also warrant medical evaluation. Be cautious with IgG‑based food intolerance tests: they lack clinical validation and may lead to unnecessary dietary restrictions. A food diary and professional consultation (e.g., for a hydrogen breath test) are more reliable approaches.