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Home / What we look at

What we look at in your DNA file

Six categories, read from the raw genotype file you already have. Each page below says what we look at, which markers it rests on, and — the part most services leave out — what your file cannot show.

  • Medicines

    10 medicine groups

    How inherited differences change the way people process common medicines, which genes a consumer DNA file covers, and the two that it cannot read reliably at all.

  • Family planning

    7 conditions

    What being a carrier means, which recessive conditions a consumer DNA file covers, and why a clear result is not an all-clear.

  • Nutrition

    7 nutrients

    Which nutrition and wellness markers a consumer DNA file covers, how strong the evidence behind them is, and why a blood test still beats a genotype.

  • Fitness

    4 areas

    What a consumer DNA file can suggest about power versus endurance, response to training, injury predisposition and recovery — and the limits of all four.

  • Traits

    13 traits

    Which everyday traits can be read from a consumer DNA file, which of them rest on strong single-gene evidence, and which are much weaker than they look.

  • Ancestry

    3 breakdowns

    How an ancestry breakdown is computed from a consumer DNA file, what mtDNA and Y haplogroups add, and why two services reading the same file disagree.

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DNA Checker provides informational and educational analysis of DNA data files you already own. It is not a medical diagnosis, not a clinical test, and not a substitute for advice from a qualified healthcare professional.

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