wie lange dauert blutabnahme — what does this mean exactly?

The duration of a blood draw depends on the test type. For a capillary blood test (finger prick), as used by MyBody-X for many hormone and nutrient tests, the actual blood collection takes only 1–2 minutes. Preparation (washing hands, disinfecting) and applying blood to the test card take about 5–10 minutes total. For a venous blood draw (e.g., at a doctor's office), the procedure itself is also quick (a few minutes), but waiting times can extend the visit. Importantly, the blood draw is short, but subsequent lab analysis may take several days. The question likely refers to a home test – here the time investment is minimal and easy to schedule.