was sind komplexe kohlenhydrate — what symptoms are typical?

Complex carbohydrates are long-chain sugars (polysaccharides) such as starch and dietary fiber, found in whole grains, legumes, vegetables, and fruits. They are digested more slowly than simple sugars, leading to a more gradual rise in blood glucose. Typical symptoms of inadequate intake include fatigue, poor concentration, cravings for sweets, and reduced exercise performance. Excessive consumption – especially of refined complex carbs – can cause bloating, fullness, and weight gain. Individual tolerance varies; people with irritable bowel syndrome or fructose malabsorption may react to certain fibers. Importantly, complex carbohydrates themselves are not a cause of symptoms; they are a staple food. The symptoms described are non‑specific and may have many causes. A balanced diet with adequate complex carbs is recommended by the DGE. The evidence is based on general nutrition science and clinical practice, not on specific studies from the provided context.