How are Cortisol and Darmgesundheit related?

The relationship between cortisol and gut health is well-documented in scientific literature, though not directly covered in the provided context. Cortisol, the primary stress hormone, is regulated via the hypothalamic-pituitary-adrenal (HPA) axis. Chronic stress elevates cortisol, which can impair the intestinal barrier („leaky gut“), alter gut motility, and negatively affect the microbiome composition – e.g., reducing diversity and increasing potentially harmful bacteria. Conversely, gut dysbiosis can activate the HPA axis via the gut-brain axis, further raising cortisol levels, creating a potential vicious cycle. Evidence comes from animal and human observational studies; however, large randomized controlled trials confirming causality are lacking. MyBody-X offers tests for both cortisol and gut health, but the clinical utility for personalized dietary advice remains limited. Caveat: These interactions are complex and cannot be fully captured by a single genetic or microbiome test.