What VDR (vitamin D receptor) gene variants are, what the research does and doesn’t show about vitamin D and health, and how to find your result.

A plain-English map of the methylation genes in your raw DNA data — MTHFR, MTR, MTRR, COMT, VDR and more — and what they do and don’t mean.

What the MTR and MTRR gene variants are, how they work with vitamin B12 to manage homocysteine, and what the research does and doesn’t show.

What the CBS gene variant is, why online methylation claims overstate it, and what the evidence actually supports — plus how to find your result.

What the MAO-A gene variant is, why the “warrior gene” label is misleading, and what the research genuinely supports about this common variant.

How MTHFR variants relate to homocysteine, why a blood test matters more than the gene, and what the evidence actually supports.

What actually happened to 23andMe, what it means for your genetic data, and the practical steps to protect, download, and make use of it.

What the MTHFR C677T variant is, what the research genuinely shows, and how to find your result in the DNA file you already have.

What the MTHFR A1298C variant is, how it differs from C677T, what the research actually supports, and how to find your result in your DNA file.

What the COMT V158M variant is, what the research does and doesn’t support, the “warrior/worrier” myth, and how to find your own result.