Can Nährstoffcheck help with Müdigkeit?

A nutrient check (blood test for vitamins, minerals, etc.) can help with fatigue by identifying specific deficiencies like iron, B12, vitamin D, or folate, which are common causes of tiredness. However, fatigue is non-specific – sleep issues, stress, thyroid disorders, or mental health can also be responsible. The test provides only part of the picture. Evidence for blood nutrient markers is solid (clinical practice), but not every deficiency explains fatigue. A DNA-based nutrient check shows genetic predispositions, not actual status – evidence there is weak (marketing). Bottom line: A blood nutrient check can be useful, but always combine with a doctor's evaluation. Do not self-diagnose or supplement without medical advice.