Vitamin D3 K2 Komplex | Shield: can a DNA test help?

A DNA test can provide insights into genetic variants in genes like VDR, GC, or CYP2R1 that influence vitamin D metabolism. However, these variants typically have modest effects and explain only a small fraction of individual vitamin D status. For vitamin K2, there are no well-established genetic markers that would justify personalized dosing of a D3+K2 complex. A DNA test cannot diagnose vitamin D or K2 deficiency – that requires blood tests (25-hydroxyvitamin D, PIVKA-II). The predictive power of such tests is limited, and many companies overstate their utility. MyBody-X tests, as per the context, are not medical devices. To optimize vitamin D levels, rely on clinical lab testing, not genotype alone. A D3+K2 supplement may be beneficial, but dosage should be guided by blood values, lifestyle, and sun exposure – not a DNA test.