Common mistakes around Mikrobiom Kinder

Common mistakes around children's microbiome include: 1) Overusing probiotics without clear indication – evidence for Bifidobacteria in healthy children is weak (mechanistic only). 2) Blindly trusting genetic tests (e.g., FUT2 non-secretor) to predict gut issues – effect size is small and not clinically actionable. 3) Believing a DNA test can diagnose 'leaky gut' – no validated genetic marker exists; NR3C1 variants are only mechanistically linked. 4) Neglecting diet, exercise, and sleep in favor of supplements. 5) Misinterpreting elevated total IgE as proof of allergies – many allergic children have normal IgE. Instead: take a holistic approach, consult a pediatrician, and prioritize a balanced diet. Evidence ranges from mechanistic (FUT2, leaky gut) to practice (IgE) to human-strong (vitamin D RCT in children).