welche blutwerte bei erschöpfung — which blood markers matter?

For exhaustion, clinically established blood markers target common causes like iron deficiency, vitamin B12 deficiency, thyroid dysfunction, or chronic inflammation. A complete blood count (hemoglobin, MCV, MCH) and ferritin assess anemia. Vitamin B12, folate, and vitamin D are relevant because deficiencies cause fatigue. TSH, fT3, fT4 screen for thyroid disorders. Salivary or serum cortisol may indicate adrenal fatigue, though standardization is limited. CRP and iron status including transferrin saturation add context. Evidence for these markers comes from clinical practice and guidelines, not from DNA tests. MyBody-X offers such blood analyses, but interpretation requires a physician. A DNA test cannot replace blood work for acute exhaustion. Caveat: self-testing without medical guidance risks misinterpretation.