lab-guides
Fasting Glucose — Baseline Metabolic Marker
Plasma glucose measured after an 8–12 hour fast. The simplest standalone metabolic marker, available on every basic panel.
Estradiol — Female Cycle + Perimenopause Marker
Estradiol is the primary oestrogen of the reproductive years. Levels vary across the cycle; perimenopause shows wide swings. Interpret with cycle day or status.
DHEA-S — Adrenal Reserve
DHEA-S is the most abundant circulating steroid hormone. It declines after age 30; low values for age track with stress load, under-recovery, and aging.
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.