welche mineralien braucht der körper — can a DNA test help?

The question of which minerals the body needs is fundamental to nutrition. A DNA test can provide some clues but not a definitive answer. MyBodyX tests analyze gene variants that may influence the metabolism of minerals such as iron, calcium, magnesium, zinc, and selenium. For example, SNPs in HFE (iron), VDR (calcium/vitamin D), and TRPV6 (calcium absorption) have been associated with altered mineral levels. However, effect sizes are generally small, and individual mineral status depends heavily on diet, gut health, medications, and lifestyle. A DNA test can indicate genetic predispositions but does not replace blood tests or medical advice. The evidence is mixed: for some minerals (iron, vitamin D) there are GWAS findings; for others (magnesium, zinc) the evidence is more mechanistic or from small studies. These tests are marketed as lifestyle insights, not clinical diagnostics. If you suspect a deficiency, consult a doctor and get lab work done. Supplementing based solely on a DNA test is not recommended and can be risky (e.g., iron overload in HFE carriers).