How are Nährstoffcheck and gut health related?

A nutrient check (e.g., MyBody-X) measures biomarkers like vitamins, minerals, or fiber. Fiber is a key nutrient for gut health: it acts as a prebiotic, supports a healthy microbiota, and regulates transit time. Fiber deficiency is linked to lower microbial diversity and increased gut inflammation. However, the link between a single nutrient test and complex gut health is indirect. The test can indicate deficiencies that may impair gut function (e.g., vitamin D, zinc), but it does not directly measure the microbiome or gut barrier. The evidence for fiber's role in gut health is strong (human-strong), but the predictive value of a nutrient check for individual gut health is limited. A more complete picture requires additional microbiome analysis and clinical symptoms. Caution: a nutrient check does not replace medical diagnosis for gut issues.