What’s included

Doctors across specialties carefully selected each test below to provide you with the broadest and deepest understanding of your ever-changing health. The following tests are included with your $499 Function annual membership.*
— Indicates biomarkers that are tested twice per year. All others are tested once per year.
If you need to test more frequently, members can re-test any of our tests for an additional cost.
Heart
Lipoprotein (a)  
Apolipoprotein B (Apo B)  
LDL Particle Number
LDL Small
LDL Medium
HDL Large
LDL Pattern
LDL Peak Size
Triglycerides  
Total Cholesterol  
LDL Cholesterol  
HDL Cholesterol  
Non-HDL Cholesterol  
Cholesterol / HDL Ratio  
High-Sensitivity C-Reactive Protein
(hsCRP) 
Thyroid
Thyroid-Stimulating Hormone (TSH)
Triiodothyronine (T3), Free 
Thyroxine (T4), Free  
Thyroglobulin Antibodies (TgAb)
Thyroid Peroxidase Antibodies (TPO)
Autoimmunity
Antinuclear Antibodies (ANA) Titer
Antinuclear Antibodies (ANA) Screen
Antinuclear Antibodies (ANA) Pattern
Rheumatoid Factor (RF) (tested once)
Immune Regulation
High-Sensitivity C-Reactive Protein (hsCRP) 
White Blood Cell (WBC) Count
Neutrophils (% and Absolute) 
Lymphocytes  (% and Absolute) 
Monocytes (% and Absolute)   
Eosinophils (% and Absolute) 
Basophils (% and Absolute) 
Female Health
Testosterone, Total
Testosterone, Free
Prolactin
Estradiol (E2)
DHEA-Sulfate
Follicle Stimulating Hormone (FSH)
Luteinizing Hormone (LH)
Sex Hormone Binding Globulin (SHBG)
Anti-Mullerian Hormone (AMH)
Male Health
Prostate Specific Antigen (PSA) %, Free
Prostate Specific Antigen (PSA), Free
Prostate Specific Antigen (PSA), Total
Testosterone, Total
Testosterone, Free
Prolactin
Estradiol (E2)
DHEA-Sulfate
Follicle Stimulating Hormone (FSH)
Luteinizing Hormone (LH)
Sex Hormone Binding Globulin (SHBG)
Stress & Aging
Cortisol
Biological Age
DHEA Sulfate
Metabolic
Leptin
Uric Acid
Glucose
Hemoglobin A1c (HbA1c)
Insulin
Nutrients
Omega 6/Omega 3 Ratio
Omega 3 and 6: Arachidonic Acid/EPA Ratio
Omega 3 and 6: Arachidonic Acid
Omega 3 and 6: EPA
Omega 3 and 6: DHA
Omega 3 (EPA+DHA) Index
Omega Risk
Methylmalonic Acid (MMA)
Vitamin D
Zinc
Magnesium
Iron
Iron Binding Capacity
Iron % Saturation
Ferritin  
Homocysteine
Liver
Gamma-glutamyl Transferase (GGT)
Total Protein
Albumin
Total Bilirubin
Aspartate Transaminase (AST)
Alanine Aminotransferase (ALT)
Alkaline Phosphatase (ALP)
Kidney
Albumin - Urine (Microalbumin)
Blood Urea Nitrogen (BUN)
Creatinine
BUN / Creatinine Ratio  
Globulin  
Albumin / Globulin Ratio  
Chloride
Calcium
Potassium  
Sodium  
Estimated Glomerular Filtration Rate (eGFR)
Pancreas
Amylase
Lipase
Heavy Metals
Lead
Mercury
Electrolytes
Sodium
Calcium
Potassium
Chloride 
Carbon Dioxide 
Magnesium
Blood
ABO Group and Rhesus Factor (tested once)
Red Blood Cell (RBC) Count
Hemoglobin
Hematocrit
Mean Corpuscular Volume (MCV)
Mean Corpuscular Hemoglobin Concentration (MCHC)
Mean Corpuscular Hemoglobin (MCH) Platelet Count
Red Cell Distribution Width (RDW)
Mean Platelet Volume (MPV)
Urine
pH
Specific Gravity
Glucose
Protein
Bilirubin
Ketones
Appearance
White Blood Cell (WBC)
Red Blood Cell (RBC)
Nitrite
Leukocytes
Occult Blood
Color
Bacteria
Hyaline Casts
Squamous Epithelial Cells
Albumin - Urine (Microalbumin)
Creatinine - Urine
Albumin/Creatinine Ratio - Urine
*All lab tests included with Function membership, test availability and prices are subject to change.

Optional Add-on Tests

Cancer Detection
Multi-Cancer Detection Test,
Galleri by Grail
Autoimmunity
Celiac Immunoglobulin A
Celiac Tissue Transglutaminase Ab
Celiac Gliadin (Deamidated) Ab  (if applicable)
Celiac Endomysial Ab Scr (if applicable)
Celiac Endomysial Ab Titer  (if applicable)
Hormones
Growth Hormone (IGF-1)  
Pregnancy (hCG)

Heavy Metals & Essential Minerals
Arsenic
Aluminum
Copper
Iodine
Selenium
Lyme
Lyme Antibody Screen
Lyme Antibody (IGG) (if applicable)
Lyme Antibody (IGM) (if applicable)
Alzheimer’s Risk
Apolipoprotein E (ApoE) Genotype
Allergies
Food Allergy Profile (IgE)  
Almond | Cashew Nut | Clam | Codfish | Cow’s Milk | Crab | Egg White | Hazelnut | Lobster | Peanut | Salmon | Scallop | Sesame Seed | Shrimp | Soybean | Tuna | Walnut | Wheat
Indoor & Outdoor Allergy Profile (IgE)  
Mold | Cat dander | Dog dander | House dust | Insect and venom | Storage mites | Select grasses, trees and weeds based on your region

Sexual Health
Chlamydia
Gonorrhea
Herpes Simplex Virus 1 and 2  
HIV 1 & 2 Antigen-Antibody
RPR (Syphilis)
Trichomoniasis
These add-on tests are not included with membership, but available any time at an additional cost.