Tag
Nutritional Deficiency
Posts on common vitamin and mineral deficiencies — how they develop, how they show up in the body and in lab results, and what to do about them.
Blood Test MarkersNutritional DeficiencyWhat does low vitamin D mean? — A plain-English guide
Low vitamin D usually means your body's stores of the sunshine vitamin have dipped — common in winter and indoors. Here's what the marker measures and what a low reading does and doesn't mean.
4 min read
B12 DeficiencyVitamin B12What does low B12 mean?
Low B12 means your body doesn't have enough vitamin B12 — also called **cobalamin** — circulating to keep up with what your cells need it for. That's a long list: making red blood cells, copying DNA, and maintaining the myelin sheath that wraps your nerves so signals travel cleanly. When B12 runs low, those processes get sloppy. You feel it before the bloodwork shows it.
6 min read