Your thyroid, your iron, and a check on your liver and kidneys. Most people add this alongside Foundation+ so their baseline covers the systems that matter most.
TSH
Thyroid-stimulating hormone, sent from your pituitary to tell the thyroid how much hormone to makeFree T4 (Direct)
The unbound portion of thyroxine, measured directly rather than calculatedFree T3
The unbound portion of triiodothyronine, the more active thyroid hormoneIron / TIBC / Ferritin
Circulating iron, storage, and carrying capacityLDH
Lactate dehydrogenase, an enzyme released when cells break down. A wide-net early-warning signalLipase
A pancreatic enzyme, your longitudinal baseline makes meaningful deviations easy to spotPSA w/ ReflexXY only
Prostate-specific antigen, a protein made by prostate cellsFour nutrients you can only get from food or sunlight
Vitamin D
The active form of vitamin D your body stores (25-hydroxyvitamin D)B12
Vitamin B12 circulating in your bloodFolate (RBC)
Folate measured inside red blood cells, reflects stores, not recent intakeZinc
Zinc circulating in your bloodSix hormones that XX and XY bodies share
FSH
Follicle-stimulating hormone, sent from the pituitary to the ovaries or testesLH
Luteinizing hormone, pairs with FSH to regulate reproductive hormonesTestosterone (Free+Total)
Testosterone in your blood, measured as free (active in cells) and total (including the bound reserve)DHEA-S
An adrenal hormone that serves as a precursor to both testosterone and estrogenSHBG
Sex hormone-binding globulin, the carrier protein that holds sex hormones in the bloodProlactin
A pituitary hormone best known for milk production but active in both sexesYour main inflammation marker, plus what feeds it
hs-CRP
High-sensitivity C-reactive protein, the primary marker for tracking inflammation over timeGGT
An enzyme released from liver and bile duct cells under stressFibrinogen
A liver protein involved in both clotting and inflammationMagnesium (RBC)
Magnesium measured inside red blood cells rather than in serumESR
How fast red blood cells settle in a tube, rises with inflammationA sharper read on heart risk than cholesterol alone, plus muscle checks if you take a statin
ApoB
Apolipoprotein B, one molecule sits on every LDL and VLDL particle, so this counts themApoA1 (Cardio IQ)
Apolipoprotein A1, the main protein on HDL particlesHomocysteine
An amino acid your body clears using B vitaminsCK
Creatine kinase, an enzyme released from muscle cells, useful for monitoring statin effectsThree types of antibody your immune system makes
IgA
Immunoglobulin A, the antibody class concentrated at mucosal surfacesIgG
Immunoglobulin G, the most abundant antibody in bloodTotal IgE
Immunoglobulin E, the antibody class involved in allergic responsesThe full thyroid picture: antibodies, the mineral your body needs to turn T4 into T3, and the marker that shows when that isn't happening
T4 Total
All thyroxine in your blood, both free and bound to carrier proteinsTPO Antibodies
Antibodies against thyroid peroxidase, an enzyme inside thyroid cellsThyroglobulin Ab
Antibodies against thyroglobulin, the protein the thyroid uses to make hormonesSelenium
Selenium circulating in your bloodReverse T3
The inactive form of T3 your body makes when it slows down thyroid hormone activationTwo precise markers: one for growth signaling, one for how well your kidneys filter
IGF-1 (LC/MS)
Insulin-like growth factor 1, the downstream signal your body makes in response to growth hormoneCystatin C w/eGFR
A small protein cleared entirely by the kidneys, less affected by muscle mass than creatinineThe omega-3 and omega-6 fats built into your red blood cells
EPA+DPA+DHA
Combined percentage of three long-chain omega-3 fatty acidsEPA
Eicosapentaenoic acid, a long-chain omega-3DHA
Docosahexaenoic acid, a long-chain omega-3DPA
Docosapentaenoic acid, a long-chain omega-3Omega-3 Total
Total of all omega-3 fatty acids measuredOmega-6 Total
Total of all omega-6 fatty acids measuredLinoleic Acid (LA)
The most abundant omega-6 in the dietArachidonic Acid (AA)
A long-chain omega-6 your body makes from linoleic acidAA/EPA Ratio
Arachidonic acid divided by EPAOmega-3/Omega-6 Ratio
Total omega-3 divided by total omega-6A molecule your cells use to make energy
Coenzyme Q10
A fat-soluble molecule your body makes and uses inside mitochondria▸Urine+urine specimen
1 Insight
Kidney health from the output side. Four tests from one urine sample, no blood draw needed
Urinalysis Complete
A broad screen of urine: pH, specific gravity, glucose, blood, protein, leukocytes, nitritesAlbumin/Creatinine Ratio
The most sensitive spot test for early kidney damageTotal Protein w/ Creatinine
Total protein in urine normalized to creatinine, catches non-albumin protein leakCreatinine (Urine)
Creatinine being cleared by the kidneys, pairs with serum creatinine in Foundation+▸Ovulation+XX only
1 Insight
Three markers of how your ovaries are working
AMH
Anti-Müllerian hormone, released by small follicles in the ovariesProgesterone
The hormone released by the ovary after ovulationEstradiol
The main estrogen, produced by developing folliclesAll three of your estrogens: the active one, the reserve, and the metabolite
Estradiol Ultrasensitive
The main estrogen, measured by a method sensitive enough for low levelsEstrone
A secondary estrogen that fat tissue can make from other hormonesEstriol
The third estrogen, produced mainly during pregnancy but present at low levels in all adults▸Menopause+XX only
3 Insights
Estrogens+ and Ovulation+ together, for tracking before, during, and after menopause
Estradiol Ultrasensitive
The main estrogen, measured by a method sensitive enough for low levelsEstrone
A secondary estrogen that fat tissue can make from other hormonesEstriol
The third estrogen, produced mainly during pregnancy but present at low levels in all adultsAMH
Anti-Müllerian hormone, released by small follicles in the ovariesProgesterone
The hormone released by the ovary after ovulationEstradiol
The main estrogen, produced by developing folliclesThe three vitamins your body stores in fat, plus B6
Vitamin A
Retinol, the active form of vitamin A your liver storesVitamin E
Alpha-tocopherol, the main fat-soluble antioxidant in cell membranesVitamin K
Phylloquinone, the form of vitamin K from plantsVitamin B6
Pyridoxal phosphate, the active form of vitamin B6Two vitamins, plus a marker that shows whether your B12 is actually working
Vitamin B2
Riboflavin, a B vitamin your cells use in energy productionVitamin C
Ascorbic acid circulating in your bloodMethylmalonic Acid
A byproduct that builds up when cells can't use B12 properlyTwo markers of how fast your blood cells are turning over
Beta-2 Microglobulin
A small protein released when immune cells break downReticulocyte Count
A count of immature red blood cells, showing how fast your marrow is making new onesFive minerals beyond the common ones
Iodine
Iodine circulating in your bloodChromium
Chromium circulating in your bloodZinc RBC
Zinc measured inside red blood cells rather than in serumCopper RBC
Copper measured inside red blood cells rather than in serumCeruloplasmin
The main protein that carries copper in the bloodThe main antioxidant your cells make for themselves
Total Glutathione
A small protein your cells make and use as an antioxidantA trace mineral a few of your enzymes depend on
Manganese
A trace mineral your body uses as a cofactor in bone-forming and antioxidant enzymesTwo markers of strain on your heart and blood vessels
NT-proBNP
A peptide your heart releases when its walls are stretchedADMA/SDMA
Two molecules that interfere with nitric oxide signaling in blood vesselsHow fast your bone is breaking down, rebuilding, and handling calcium
CTx
A fragment released when bone collagen is broken downP1NP
A fragment released when new bone collagen is being formedPTH Intact
Parathyroid hormone, regulates calcium by pulling it from bone and kidneysCalcium Ionized
The free, unbound fraction of calcium in your blood