Introducing Biomarkers
Blood Test Analyzer
Select any marker, enter your result, and get an instant personalized analysis — what your level means, your optimal range, and what to do next.

What is a biomarker?
A biomarker is a measurable value your blood carries about how your body is functioning right now. Each marker is a window into a different body system. Together, they reveal what no symptom alone can show.
Glucose
Blood sugar control
Ferritin
Iron stores
TSH
Thyroid function
HbA1c
3-month sugar average
Vitamin D
Immunity & bone health
ApoB
Heart disease risk
‘Normal’ is not the same as optimal.
Lab reference ranges are built from the middle 95% of a tested population, including people with poor nutrition, sedentary lifestyles, and undiagnosed conditions. A result can sit inside the ‘Normal’ band and still indicate a real problem.
Example — Vitamin D
Your result
Your result
Lab: NormalLab threshold
Deficient belowOptimal range
Research-backedMarked Normal by the lab. Associated with impaired immunity, low mood, and reduced bone density.
How to check what your result means
Find your marker
Search by name or browse by body system. Every marker is explained in plain language. No background needed.
Click and enter your result
Enter the number from your lab report. We'll ask a few short questions about your age, lifestyle, and context to personalise your results.
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See what your result means, your optimal range, what's driving it, and what to do next.
Metabolic
Blood sugar, insulin, appetite hormones, and how your body processes energy.
96 million American adults have pre-diabetes. More than 80% don't know it. (CDC)
- AnalyzeGlucosemg/dL
Your blood sugar at the time of testing — elevated fasting levels are an early warning sign of metabolic stress.
- AnalyzeHbA1c%
A 3-month blood sugar average — more reliable than a single glucose reading for detecting pre-diabetes.
- AnalyzeInsulinuIU/mL
The hormone that moves sugar into cells — elevated fasting insulin is the earliest measurable sign of insulin resistance.
- AnalyzeUric Acidmg/dL
A metabolic waste product — high levels cause gout and independently drive cardiovascular inflammation.
- AnalyzeHomocysteineumol/L
An amino acid linked to artery damage, heart disease, and cognitive decline when elevated. Largely correctable with B vitamins.
- AnalyzeLeptinng/mL
The satiety hormone from fat cells — high levels alongside obesity signals leptin resistance, perpetuating hunger.
- AnalyzeBiological Ageyears
How old your cells actually function — a lower biological age than calendar age indicates healthy aging.
- AnalyzeDHEA-Sulfatemcg/dL
The most abundant adrenal hormone — declines with age and is linked to energy, libido, and immune function.
Blood & Iron
Oxygen delivery, complete blood count, and iron reserves.
Iron deficiency is the world's most common nutritional deficiency, affecting 2 billion people. (WHO)
- AnalyzeHemoglobing/dL
The protein that carries oxygen in red blood cells — low levels cause fatigue, breathlessness, and brain fog.
- AnalyzeHematocrit%
The percentage of blood volume made up by red blood cells — rises and falls with haemoglobin.
- AnalyzeRed Blood Cell CountM/uL
How many red blood cells you have — reflects your blood's overall oxygen-carrying capacity.
- AnalyzeMean Corpuscular VolumefL
Average red blood cell size — the key index for classifying whether anaemia is iron-driven, B12-driven, or neither.
- AnalyzeMean Corpuscular Hemoglobinpg
Average haemoglobin per red cell — mirrors MCV and helps confirm the type of anaemia.
- AnalyzeMean Corpuscular Hemoglobin Concentrationg/dL
Haemoglobin concentration inside each red cell — unusually high values are characteristic of hereditary spherocytosis.
- AnalyzeRed Cell Distribution Width%
Variation in red cell size — an early signal of nutritional deficiency that rises before haemoglobin drops.
- AnalyzeWhite Blood Cell CountK/uL
Your total circulating immune cell count — abnormal levels signal infection, inflammation, or immune dysfunction.
- AnalyzePlateletsK/uL
The cell fragments that form blood clots — too few or too many both cause serious problems.
- AnalyzeMean Platelet VolumefL
Average platelet size — larger platelets are more reactive and correlate with cardiovascular risk.
- AnalyzeABO Group and Rhesus (Rh) Factor
Your blood group — essential for transfusions, pregnancy, and organ donation.
- AnalyzeFerritinng/mL
Your iron reserve tank — depleted before haemoglobin falls, causing fatigue even with a normal blood count.
- AnalyzeIronmcg/dL
Iron circulating in your blood right now — only meaningful when read alongside ferritin and TIBC.
- AnalyzeIron Binding Capacitymcg/dL
The maximum iron your blood can carry — rises when stores are low, pointing to iron-deficiency anaemia.
- AnalyzeIron % Saturation%
How much of your iron-carrying protein is actually loaded — the first-line screen for iron overload (haemochromatosis).
Lipids & Cardiovascular
Blood fats, particle counts, and your actual heart disease risk.
Heart disease kills ~695,000 Americans per year — many with 'normal' LDL on their last test. (CDC)
- AnalyzeTotal Cholesterolmg/dL
All cholesterol types combined — of limited use without knowing the breakdown.
- AnalyzeLDL Cholesterolmg/dL
The cholesterol particle that deposits in artery walls — lower generally means lower heart risk.
- AnalyzeHDL Cholesterolmg/dL
The 'good' cholesterol that removes LDL from arteries — higher is protective.
- AnalyzeNon-HDL Cholesterolmg/dL
All atherogenic cholesterol in one number — more complete than LDL alone, especially with high triglycerides.
- AnalyzeTriglyceridesmg/dL
Blood fats driven by diet and insulin — one of the fastest markers to improve with lifestyle changes.
- AnalyzeTotal Cholesterol / HDL Ratioratio
The ratio of total to protective cholesterol — a quick single-number cardiovascular risk snapshot.
- AnalyzeApoBmg/dL
Counts every artery-damaging particle directly — more predictive of heart risk than LDL alone.
- AnalyzeLipoprotein (a)mg/dL
A genetically determined lipid particle that amplifies heart risk independent of LDL — test once in your lifetime.
- AnalyzeLDL Particle Numbernmol/L
The total count of LDL particles in your blood — more predictive than LDL cholesterol, especially with insulin resistance.
- AnalyzeLDL Smallnmol/L
Small, dense LDL particles — the most atherogenic subclass, elevated by insulin resistance and high carb intake.
- AnalyzeLDL Mediumnmol/L
Medium-size LDL particles — contribute to total particle count and overall cardiovascular risk.
- AnalyzeLDL Pattern
Pattern A (large, buoyant) vs Pattern B (small, dense) — Pattern B significantly raises heart attack risk.
- AnalyzeLDL Peak Sizenm
The diameter of your most common LDL particle — smaller peak size indicates greater cardiovascular risk.
- AnalyzeHDL Largenmol/L
The most functionally active HDL subclass — large HDL drives cholesterol removal from artery walls.
Thyroid & Autoimmune
Thyroid hormones, antibodies, and markers of autoimmune activity.
20 million Americans have thyroid disease. Up to 60% are unaware. (American Thyroid Association)
- AnalyzeTSHmIU/L
The brain's signal to the thyroid — the first and most sensitive indicator of thyroid dysfunction.
- AnalyzeFree T4ng/dL
The main hormone the thyroid produces — must convert to Free T3 to become biologically active.
- AnalyzeFree T3pg/mL
The active thyroid hormone your cells actually use — often low even when TSH looks normal.
- AnalyzeThyroid Peroxidase AntibodiesIU/mL
The primary marker for Hashimoto's thyroiditis — positive years before the thyroid visibly fails.
- AnalyzeThyroglobulin AntibodiesIU/mL
A second Hashimoto's antibody — also used to detect thyroid cancer recurrence after thyroid removal.
- AnalyzeAntinuclear Antibodies Screen
Detects antibodies against cell nuclei — a broad screen for lupus, Sjögren's, and other autoimmune diseases.
- AnalyzeAntinuclear Antibodies Titer
The strength of the ANA signal — higher titers are more likely to indicate true autoimmune disease.
- AnalyzeAntinuclear Antibodies Pattern
Where the antibodies bind — different patterns point to different autoimmune conditions.
- AnalyzeRheumatoid FactorIU/mL
An antibody associated with rheumatoid arthritis — positive in ~75% of RA cases.
Vitamins & Minerals
Micronutrients essential for energy, immunity, and brain function.
~1 billion people are Vitamin D deficient. Magnesium deficiency affects up to 45% of Americans.
- AnalyzeVitamin Dng/mL
A hormone-like vitamin made from sunlight — deficiency impairs immunity, mood, and bone density.
- AnalyzeVitamin B12pg/mL
Essential for nerves, DNA, and red blood cells — deficiency can silently damage nerves over years.
- AnalyzeFolateng/mL
A B vitamin critical for DNA repair and cell division — especially important during pregnancy.
- AnalyzeMethylmalonic Acidnmol/L
The most sensitive functional test for B12 deficiency — elevated before nerve damage occurs.
- AnalyzeCalciummg/dL
The main bone mineral — abnormal blood levels usually reflect a parathyroid problem, not diet.
- AnalyzeMagnesiummg/dL
Involved in 300+ body processes — deficiency affects sleep, muscle function, and energy production.
- AnalyzePotassiummEq/L
The electrolyte that keeps your heart rhythm steady — abnormal levels require prompt attention.
- AnalyzeSodiummEq/L
Controls fluid balance — abnormal levels reflect kidney or hormonal issues more than salt intake.
- AnalyzeZincmcg/dL
Essential for immunity, wound healing, and testosterone — deficiency is common in older adults and vegetarians.
Kidney
How efficiently your kidneys are filtering waste and balancing electrolytes.
90% of people with early chronic kidney disease have no symptoms and don't know they have it. (NKF)
- AnalyzeCreatininemg/dL
A muscle waste product filtered by the kidneys — rising levels are an early sign of kidney decline.
- AnalyzeBUNmg/dL
Protein waste in the blood — elevated levels point to kidney dysfunction, dehydration, or high protein intake.
- AnalyzeBUN/Creatinine Ratioratio
The ratio that distinguishes dehydration from intrinsic kidney disease.
- AnalyzeeGFRmL/min/1.73m^2
Your kidney filtration rate — the clearest, most actionable measure of kidney function.
- AnalyzeChloridemEq/L
An electrolyte that tracks acid-base balance alongside sodium and bicarbonate.
- AnalyzeCarbon DioxidemEq/L
A measure of blood bicarbonate — low levels in CKD independently accelerate kidney function loss.
Liver
Enzyme markers that detect liver stress before symptoms appear.
1 in 4 adults worldwide has non-alcoholic fatty liver disease. The vast majority have no symptoms. (AASLD)
- AnalyzeALTU/L
An enzyme that leaks from injured liver cells — the most specific blood marker of liver damage.
- AnalyzeASTU/L
A liver and muscle enzyme — elevated in liver injury, overtraining, or cardiac damage.
- AnalyzeALPU/L
A liver and bone enzyme — raised in bile duct obstruction or increased bone turnover.
- AnalyzeGGTU/L
A liver enzyme uniquely sensitive to alcohol and fatty liver — often the first to rise.
- AnalyzeBilirubinmg/dL
The pigment from broken-down red blood cells — elevated levels cause yellowing of the skin and eyes.
- AnalyzeAlbuming/dL
The liver's main protein output — low levels signal declining liver function or malnutrition.
- AnalyzeTotal Proteing/dL
All proteins in the blood combined — low levels indicate malnutrition, liver disease, or protein loss.
- AnalyzeGlobuling/dL
Immune and carrier proteins — elevated globulin raises suspicion for autoimmune disease or plasma cell disorders.
Immune & Inflammation
Inflammatory markers and the full white blood cell differential.
Chronic low-grade inflammation is a contributing mechanism in cardiovascular disease, diabetes, neurodegeneration, and cancer.
- AnalyzeCRPmg/L
A liver protein released during inflammation — the high-sensitivity version detects silent cardiovascular risk.
- AnalyzeESRmm/hr
How fast your red blood cells settle — a broad, sensitive indicator of systemic inflammation or infection.
- AnalyzeNeutrophilsK/uL
The immune system's frontline bacteria fighters — elevated by infection, low during chemotherapy or viral illness.
- AnalyzeLymphocytesK/uL
The cells that produce antibodies and kill infected cells — low counts impair antiviral and anti-cancer immunity.
- AnalyzeMonocytesK/uL
Long-lived immune cleanup cells — persistently elevated monocytes predict cardiovascular events.
- AnalyzeEosinophilsK/uL
Specialised cells that drive allergy and fight parasites — the first marker to check in unexplained allergic symptoms.
- AnalyzeBasophilsK/uL
Rare immune cells central to allergic reactions — even small increases are clinically significant.
Hormones & Fertility
Sex hormones, reproductive markers, and adrenal output.
Up to 40% of men over 45 have clinically low testosterone. Most are never screened.
- AnalyzeTestosteroneng/dL
The primary androgen — affects energy, libido, muscle mass, and mood in both sexes.
- AnalyzeTestosterone, Freepg/mL
The biologically active testosterone fraction — often low even when total testosterone looks normal.
- AnalyzeEstradiolpg/mL
The dominant estrogen — critical for bones, cardiovascular health, and cognitive function in both sexes.
- AnalyzeSex Hormone Binding Globulinnmol/L
The protein that binds sex hormones — high SHBG can cause low-testosterone symptoms even with normal total levels.
- AnalyzeProlactinng/mL
A pituitary hormone — elevated levels suppress sex hormones and signal a pituitary tumour in both sexes.
- AnalyzeFollicle Stimulating HormonemIU/mL
The signal that stimulates egg and sperm production — elevated FSH in women is the earliest marker of declining fertility.
- AnalyzeLuteinizing HormonemIU/mL
Triggers ovulation in women and testosterone production in men — an elevated LH/FSH ratio suggests PCOS.
- AnalyzeAnti-Mullerian Hormoneng/mL
Directly reflects remaining ovarian egg supply — the most reliable fertility clock for women.
- AnalyzeCortisolmcg/dL
Your stress hormone — chronically elevated levels disrupt sleep, immunity, and metabolism.
Omegas & Fatty Acids
The balance of anti-inflammatory and pro-inflammatory fats in your cells.
The Western diet delivers an omega-6 to omega-3 ratio of 15–25:1. The ancestral diet was 2–4:1.
- AnalyzeOmega-3 Total%
Your total omega-3 status — levels above 8% are associated with significantly lower cardiovascular mortality.
- AnalyzeOmega-6 Total%
Your total omega-6 load — elevated by a diet high in processed seed oils.
- AnalyzeOmega-6: Linoleic Acid%
The parent omega-6 fat from vegetable oils — the primary dietary source of pro-inflammatory arachidonic acid.
- AnalyzeOmega-6: Arachidonic Acid%
The omega-6 that directly fuels inflammation — the balance with EPA determines your inflammatory set-point.
- AnalyzeOmega-6 / Omega-3 Ratioratio
The master ratio of pro- to anti-inflammatory fats — a target below 4:1 cuts cardiovascular risk significantly.
- AnalyzeArachidonic Acid/EPA Ratioratio
The most sensitive inflammatory balance marker — responds meaningfully to fish oil supplementation within months.
Urinalysis
A comprehensive view of kidney health, hydration, and urinary tract status.
Urinalysis is one of the oldest diagnostic tests — microscopic analysis can detect kidney disease, infection, and diabetes simultaneously.
- AnalyzeColor (Urine)
A first visual check on hydration status and potential pathology — significant deviations always warrant follow-up.
- AnalyzeAppearance (Urine)
Cloudiness or turbidity in urine — typically indicates white blood cells, bacteria, or crystals.
- AnalyzeSpecific Gravity (Urine)SG
How concentrated your urine is — a fixed specific gravity regardless of hydration signals impaired kidney function.
- AnalyzepH (Urine)pH
Urine acidity — persistently acidic urine raises kidney stone risk; alkaline urine can signal a UTI or renal condition.
- AnalyzeGlucose (Urine)
Sugar in the urine — a classic sign of uncontrolled diabetes that appears when blood glucose exceeds the kidney threshold.
- AnalyzeKetones (Urine)
Fat-burning byproducts in urine — expected on a ketogenic diet, but a danger sign in uncontrolled type 1 diabetes.
- AnalyzeProtein (Urine)
Protein leaking into urine — persistent proteinuria signals kidney damage requiring quantification and monitoring.
- AnalyzeAlbumin (Urine)mg/g
The earliest detectable protein leak from damaged kidney filters — precedes a creatinine rise by years.
- AnalyzeBilirubin (Urine)
Bilirubin in urine signals liver disease or bile duct obstruction — not normally present at all.
- AnalyzeOccult Blood (Urine)
Invisible blood in urine — always warrants investigation for stones, infection, glomerulonephritis, or bladder cancer.
- AnalyzeLeukocytes (Urine)
White blood cells in urine — a key indicator of urinary tract infection when combined with positive nitrite.
- AnalyzeNitrite (Urine)
Bacteria-produced compound in urine — highly specific for bacterial UTI when positive.
- AnalyzeRed Blood Cell (Urine)/hpf
Red blood cells under the microscope — cell shape reveals whether bleeding originates in the kidney or bladder.
- AnalyzeWhite Blood Cell (Urine)/hpf
White blood cells under the microscope — confirms pyuria and guides UTI diagnosis when culture is pending.
- AnalyzeGranular Casts/lpf
Protein cylinders from kidney tubules — a marker of active tubular damage in acute or chronic kidney disease.
Pancreatic & Exposure
Pancreatic enzymes and heavy metal screening.
Heavy metal exposure is underdiagnosed — lead and mercury affect millions through old pipes, large-fish diets, and occupational exposure.
- AnalyzeAmylaseU/L
The primary enzyme for digesting starch — markedly elevated levels are the diagnostic hallmark of acute pancreatitis.
- AnalyzeLipaseU/L
The pancreatic fat-digestion enzyme — more specific than amylase for pancreatitis and stays elevated longer.
- AnalyzeLeadmcg/dL
A neurotoxin with no safe level — stored in bones for decades, linked to hypertension, kidney disease, and cognitive decline.
- AnalyzeMercurymcg/L
A neurotoxin primarily from large predatory fish — elevated in regular consumers of swordfish, shark, or high-frequency tuna.
Reference Sources
Clinical thresholds and figures in this library are drawn from the sources below. See our Editorial Standards for our full methodology.
- CDC
Centers for Disease Control and Prevention
National Diabetes Statistics Report, 2022; Heart Disease Facts
- WHO
World Health Organization
Micronutrient Deficiencies — Iron Deficiency Anaemia
- ATA
American Thyroid Association
General information on thyroid disease prevalence
- NKF
National Kidney Foundation
CKD statistics and eGFR reference ranges
- AASLD
American Assoc. for the Study of Liver Diseases
NAFLD/NASH Clinical Practice Guidelines, 2023
- MCL
Mayo Clinic Laboratories
Reference interval database for all markers in this library
- ACC/AHA
American College of Cardiology / AHA
2019 Guidelines on Primary Prevention of Cardiovascular Disease
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