How are Nährstoffcheck and Sport related?

The provided context documents do not contain a direct statement linking Nährstoffcheck (nutrient test) and Sport (exercise). However, a general relationship exists: physical activity increases the demand for certain nutrients such as iron, magnesium, B vitamins, and antioxidants. For example, low ferritin (iron stores) can impair endurance performance, while elevated inflammatory markers (CRP) may indicate overtraining. Interpretation of such tests requires clinical context – especially for ferritin, which is an acute-phase reactant and can be elevated by inflammation even when iron stores are low (see nvidia-bio-ferritin module). A standalone nutrient test without medical evaluation is insufficient to derive exercise recommendations. The evidence for a direct, personalized link from consumer tests is weak; many associations are based on mechanistic or population studies. Caution: Do not self-diagnose or supplement without professional guidance.