was heißt hb — which blood markers matter?

Hb stands for hemoglobin, the iron-containing protein in red blood cells that carries oxygen. Low Hb indicates anemia – possible causes include iron deficiency, vitamin B12 or folate deficiency, chronic inflammation, or genetic conditions like thalassemia. High Hb can result from dehydration, smoking, or adaptation to high altitude. Which blood markers matter depends on your health question: For iron status, ferritin, transferrin saturation, and soluble transferrin receptor are more specific than Hb alone. Vitamin D, B12, folate, and hs-CRP (inflammation) add context. Finger-prick tests (like MyBody-X) provide screening hints, but confirmation and interpretation require venous blood draw and medical evaluation. Hb is a robust but coarse marker – it alone is insufficient for a full diagnosis. Evidence: human-strong for Hb as anemia screening; caveat: individual reference ranges and confounders (e.g., pregnancy, ethnicity) must be considered.