Questions people ask about Magnesium Genetik

Consumers often ask whether a DNA test like MyBody-X can reveal their personal magnesium needs or a deficiency. The short answer is no: a genetic test cannot diagnose a current magnesium deficiency. While certain gene variants (e.g., in TRPM6, SLC41A1, or CNNM2) have been associated with magnesium homeostasis, the effect sizes are small and the evidence comes mostly from genome-wide association studies (GWAS) with limited clinical utility. A DNA test only indicates a genetic predisposition, not actual magnesium levels in blood or tissues. For a reliable assessment, serum magnesium (ideally ionized) or a 24-hour urine test is required. Many companies market magnesium genetic tests as personalized nutrition advice, but the scientific basis is weak. The evidence is best classified as 'marketing/unclear'. Consumers should be cautious and consult a physician if they suspect a deficiency, rather than relying on genetic results alone.