was sind helle stellen im kot — what does this mean exactly?

The question about light spots in stool (often described as 'white specks' or 'fatty stool') is not addressed in the provided context. Medically, possible causes include undigested food (corn, nuts, seeds), fat malabsorption (due to gallbladder issues, pancreatic insufficiency, or celiac disease), mucus, or certain medications (antacids, barium sulfate). Without clinical details (color, consistency, accompanying symptoms), no reliable assessment is possible. Direct-to-consumer tests (DNA, microbiome, hormone) cannot answer this question. Persistent changes, diarrhea, weight loss, or pain warrant a doctor visit (gastroenterology) with stool analysis and possibly fecal elastase. Evidence: general medical knowledge, no context-specific sources.