Questions people ask about Longevity Ernährung

Questions about longevity nutrition often involve genetic tests (e.g., MTHFR) or microbiome analysis, but the evidence for actionable advice is limited. The MTHFR rs1801133 variant affects folate metabolism, yet standard prenatal doses (400–800 mcg) remain safe; clinical utility is low. Microbiome tests in children lack clear thresholds for probiotic use, and safety concerns persist. The ACTN3 'sprinter gene' has only a small effect on endurance – training is far more important. For longevity, general dietary patterns (plant-rich, minimally processed, adequate protein) are better supported than expensive genetic tests. Personalized nutrition is still emerging; many DTC claims are marketing-driven. Consumers should be cautious about overinterpreting results and consult healthcare professionals before making drastic changes. Evidence for most longevity nutrition interventions is moderate at best, with many claims based on mechanistic or observational data rather than robust clinical trials.