was sind helle stellen im kot — which blood markers matter?

The question about bright spots in stool and relevant blood markers is not addressed in the provided context. In general, pale, greasy stools may indicate malabsorption, such as in pancreatic insufficiency or celiac disease. Relevant blood markers include fecal elastase, calprotectin, vitamin levels (A, D, E, K), and liver enzymes (GGT, ALP). However, no specific evidence from the context supports this. The DNA-related information (e.g., IL6, FADS2, MTHFR) does not directly relate to stool appearance or blood markers. Therefore, the evidence for this specific question is unclear. Persistent symptoms warrant medical evaluation.