lab-guides
How to read your biomarkers: HbA1c, TSH, lipid panel, vitamin D, ApoB and more — what each marker means, optimal ranges by age, every claim sourced.
Creatinine and eGFR — Kidney Function
Serum creatinine and the calculated eGFR estimate the kidney filtration rate. Heavily muscled adults run higher creatinine without true kidney impairment.
ApoB — Cardiovascular Risk Marker
Apolipoprotein B counts every atherogenic particle in your blood (LDL, VLDL, IDL, Lp(a)). Modern lipidology considers ApoB a sharper risk marker than LDL-C alone.
ALT and AST — Liver Enzymes
Alanine and aspartate transaminases leak into blood when liver cells are stressed. Mild persistent elevations are the most common signal of fatty liver disease.
Magnesium RBC — Cellular Magnesium Status Explained
Red blood cell magnesium reflects true body status better than serum magnesium. Optimal range, how to read your result, and what moves the needle.