welche blutwerte bei erschöpfung — can a DNA test help?

Blood values relevant to exhaustion typically include iron (ferritin), vitamin B12, vitamin D, thyroid markers (TSH), complete blood count, and possibly inflammatory markers like CRP. A DNA test can offer limited insights: it may reveal genetic predispositions for lower B12 levels (MUT, TCN2) or vitamin D metabolism (VDR, GC). However, these variants have small effect sizes and are not diagnostic. Clinical blood work remains the gold standard. DNA tests can provide complementary clues but should not replace medical evaluation. Many direct-to-consumer tests overstate their utility. For persistent fatigue, consulting a physician is essential.