Common mistakes around longevity DNA tests for children include overinterpreting small-effect variants and neglecting lifestyle. Parents often expect a saliva test to prescribe a personalized diet or supplement regimen, but most genetic variants (e.g., in GSTM1, BMAL1) have tiny effect sizes and are ancestry-dependent. The GSTM1 null genotype is linked to reduced detoxification capacity, yet no evidence supports a specific 'detox diet' based on this. Similarly, at-home IgE tests (as in the product catalog) show sensitization, not clinical allergy – false positives are common in children. Another mistake is restricting a child’s diet based on a single variant (e.g., FTO), risking nutrient deficiencies or disordered eating. The evidence for actionable longevity insights from consumer DNA tests is weak (rated 'human-moderate' to 'mechanistic'). General health habits – balanced nutrition, physical activity, sleep – remain far more impactful. Any medical concerns should be evaluated by a pediatrician, not by a home test.
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