Longevity.haus
Quest Diagnostics Quest Diagnostics

Fitness Profile — Nutrition Test

Type

Blood Testing

Biomarkers

53

Duration

30 min

Results

4 days

Comprehensive blood test evaluating nutrition, including macro and micronutrients, for athletes.

This panel helps fitness-minded individuals evaluate their nutrition, including macro and micronutrients. It also includes key physical measurements and a Health Risk Assessment. The test measures various biomarkers related to liver function, lipid profiles, vitamins, minerals, and hydration. Results help create a customized nutritional plan and identify potential deficiencies. A physician consultation is available to discuss results and set health goals.

Key Details

Focus
Athletic performance and recovery optimization
Biomarkers
30–60+ markers
Fasting Required
Yes, 10–12 hours
Sample Type
Blood draw
Timing
Test during rest day, not post-workout

Who Is This For?

Professional and competitive athletes wanting to optimize training and recovery. Recreational athletes training 4+ days per week who want data-driven insights. Runners, cyclists, CrossFitters, and strength athletes experiencing unexplained fatigue or performance plateaus. Coaches and trainers looking for objective markers to guide programming.

What's Included

Complete blood count (CBC)
Iron studies including ferritin
Hormone panel (testosterone, cortisol, DHEA-S)
Inflammatory markers (hsCRP, ESR)
Vitamin D, B12, folate
Liver and kidney function
Thyroid function

Preparation Required

Fasting for 10–12 hours before your appointment is recommended for accurate results (water is fine). Avoid alcohol for 24 hours and intense exercise for 12 hours before the blood draw. Morning appointments are ideal for consistent hormone and glucose readings. The blood draw typically takes 5–10 minutes.

Biomarkers Tested

53
Alkaline Phosphatase (ALP) U/L

An enzyme found in the liver, bones, kidneys, and digestive system. Elevated ALP can indicate bile duct obstruction, liver disease, or bone disorders. It's normally higher in children and during pregnancy due to bone growth.

Chloride mEq/L

An electrolyte that works with sodium to maintain fluid balance, blood pressure, and acid-base balance. Chloride abnormalities often accompany sodium abnormalities and can indicate dehydration, kidney disease, or metabolic disorders.

AST (Aspartate Aminotransferase) U/L

An enzyme found in the liver, heart, and muscles. While less liver-specific than ALT, elevated AST can indicate liver damage, heart attack, or muscle injury. The AST/ALT ratio helps distinguish between different liver conditions.

ALT (Alanine Aminotransferase) U/L

A liver enzyme that helps convert proteins into energy. ALT is found primarily in the liver, making it a highly specific marker for liver damage. Elevated levels may indicate hepatitis, fatty liver disease, or medication-related liver injury.

Carbon Dioxide (CO2) mEq/L

Measures the total CO2 content in blood, primarily as bicarbonate. It reflects the acid-base balance maintained by the lungs and kidneys. Abnormal levels can indicate respiratory or metabolic acidosis or alkalosis.

Potassium mEq/L

A critical electrolyte for heart rhythm, muscle contractions, and nerve function. Both high and low potassium can cause dangerous cardiac arrhythmias. Levels are influenced by kidney function, medications, and diet.

Sodium mEq/L

The primary electrolyte regulating fluid balance and blood pressure. Sodium is essential for nerve impulses and muscle contractions. Abnormal levels can cause confusion, seizures, and cardiac arrhythmias.

Glucose mg/dL

Blood sugar — the body's primary energy source. Fasting glucose screens for diabetes and prediabetes. Chronically elevated glucose damages blood vessels and organs. Levels fluctuate with meals, stress, and physical activity.

Triglycerides mg/dL

The most common type of fat in the body, stored for energy. Elevated triglycerides — often from excess sugar, alcohol, or calories — increase cardiovascular risk and can cause pancreatitis at very high levels.

Glucose mg/dL

Blood sugar — the body's primary energy source. Fasting glucose screens for diabetes and prediabetes. Chronically elevated glucose damages blood vessels and organs. Levels fluctuate with meals, stress, and physical activity.

Albumin g/dL

The most abundant protein in blood, produced by the liver. Albumin maintains blood volume and pressure, and transports hormones, vitamins, and drugs. Low levels indicate liver disease, kidney disease, malnutrition, or chronic inflammation.

EPA/Arachidonic Acid Ratio Ratio

Ratio of omega-3 fatty acid (EPA) to omega-6 fatty acid (AA); informs diet quality.

Arachidonic acid (AA) mg/dL

Omega-6 fatty acid found in various foods.

EPA (eicosapentaenoic acid) mg/dL

Omega-3 fatty acid found in fish; involved in brain function, growth, and reducing inflammation.

Docosahexaenoic acid (DHA) mg/dL

Omega-3 fatty acid found in fish; involved in brain function, growth, and reducing inflammation.

Albumin g/dL

The most abundant protein in blood, produced by the liver. Albumin maintains blood volume and pressure, and transports hormones, vitamins, and drugs. Low levels indicate liver disease, kidney disease, malnutrition, or chronic inflammation.

Total Protein g/dL

Measures the combined amount of albumin and globulin proteins in your blood. These proteins are essential for fighting infections, blood clotting, and transporting substances throughout the body.

Albumin/Globulin Ratio (A/G Ratio) ratio

The ratio of albumin to globulin proteins in blood. A low A/G ratio may indicate overproduction of globulins (as in multiple myeloma or autoimmune disease) or underproduction of albumin (liver disease).

Albumin g/dL

The most abundant protein in blood, produced by the liver. Albumin maintains blood volume and pressure, and transports hormones, vitamins, and drugs. Low levels indicate liver disease, kidney disease, malnutrition, or chronic inflammation.

Omega-3 & 6 mg/dL and Ratio

Measures levels of omega-3 and omega-6 fatty acids, including total omega-3, total omega-6, EPA + DPA + DHA, Arachidonic Acid/EPA Ratio, and Omega-6/Omega-3 Ratio.

Calcium mg/dL

The most abundant mineral in the body, essential for bone health, muscle contraction, nerve function, and blood clotting. Blood calcium is tightly regulated by parathyroid hormone and vitamin D. Abnormal levels can indicate parathyroid disorders.

Iron (Fe) µg/dL

A mineral essential for oxygen transport (in hemoglobin), energy production, and immune function. Serum iron measures the amount circulating in blood, but ferritin and TIBC provide a more complete picture of iron status.

Carotene µg/dL

Precursor to vitamin A; functions as an antioxidant.

Vitamin B12 pg/mL

Essential for nerve function, DNA synthesis, and red blood cell formation. B12 deficiency can cause anemia, neuropathy, fatigue, and cognitive impairment. Common in vegans, vegetarians, older adults, and those taking metformin or acid-reducing medications.

Vitamin E mg/L

A fat-soluble antioxidant that protects cell membranes from oxidative damage. Vitamin E works synergistically with vitamin C and selenium. Deficiency is rare but can cause nerve and muscle damage.

Vitamin D (25-OHD) ng/mL

The best indicator of overall vitamin D status. Vitamin D is essential for calcium absorption, bone health, immune function, and mood regulation. Deficiency is extremely common, especially in northern latitudes, and linked to increased disease risk.

Mercury µg/L

A toxic heavy metal found in certain fish (methylmercury), dental amalgams, and industrial sources. Mercury targets the nervous system, causing tremors, cognitive changes, and sensory impairment. Fish consumption is the primary source for most people.

B9 ng/mL

Vitamin B9 (Folate) is crucial for DNA synthesis and repair. Low levels can lead to anemia and other health issues.

Ferritin ng/mL

The primary iron storage protein. Ferritin reflects total body iron stores and is the first marker to drop in iron deficiency. However, ferritin also rises with inflammation, infection, and liver disease, which can mask true iron deficiency.

Bilirubin mg/dL

Bilirubin is a substance produced during the normal breakdown of red blood cells. High levels can lead to jaundice and indicate liver or bile duct problems.

Osmolality mOsm/kg

Osmolality measures the concentration of dissolved particles in the blood, indicating hydration status.

Creatinine mg/dL

A waste product from normal muscle metabolism, filtered by the kidneys. Blood creatinine levels reflect kidney filtration capacity. Elevated levels may indicate impaired kidney function, dehydration, or excessive muscle breakdown.

Urea mg/dL

A waste product from protein breakdown, processed by the liver and excreted by the kidneys. Elevated urea levels can indicate kidney dysfunction, dehydration, high-protein diet, or gastrointestinal bleeding.

Creatinine mg/dL

A waste product from normal muscle metabolism, filtered by the kidneys. Blood creatinine levels reflect kidney filtration capacity. Elevated levels may indicate impaired kidney function, dehydration, or excessive muscle breakdown.

Estimated Glomerular Filtration Rate (eGFR) mL/min/1.73m²

An estimated measure of how well your kidneys filter waste from the blood. It's calculated from creatinine levels, age, sex, and race. eGFR is the primary marker used to stage chronic kidney disease.

Total Cholesterol mg/dL

The combined measure of all cholesterol in your blood, including HDL, LDL, and VLDL. While useful as an overview, the breakdown between HDL and LDL is more clinically meaningful for assessing cardiovascular risk.

Non-HDL cholesterol mg/dL

Non-HDL cholesterol is the total cholesterol minus HDL cholesterol, representing all "bad" cholesterols. High levels can increase the risk of heart disease.

Globulin g/dL

A group of proteins in blood including antibodies (immunoglobulins), transport proteins, and enzymes. Elevated globulin can indicate chronic infection, inflammation, or blood cancers. Calculated by subtracting albumin from total protein.

Folate (Vitamin B9) ng/mL

Essential for DNA synthesis, cell division, and red blood cell formation. Folate deficiency causes megaloblastic anemia and, during pregnancy, increases the risk of neural tube defects. Works closely with vitamin B12.

Haemoglobin (HGB) g/dL

The iron-rich protein in red blood cells responsible for carrying oxygen throughout your body and returning carbon dioxide to the lungs. Low haemoglobin is the primary marker for anemia and can cause fatigue, weakness, and shortness of breath.

Red Blood Cell Count × 10¹²/L

Measures the number of red blood cells in your blood. Red blood cells carry oxygen from your lungs to every cell in your body. Abnormal levels can indicate anemia, dehydration, or bone marrow disorders.

White Blood Cell Count × 10⁹/L

Measures the total number of white blood cells, your body's primary defense against infection. Elevated levels may indicate infection, inflammation, or immune disorders, while low levels can signal bone marrow problems or autoimmune conditions.

Platelet Count × 10⁹/L

Measures the number of platelets, small cell fragments essential for blood clotting. Low platelets increase bleeding risk, while high platelets may increase clot risk. Important for monitoring clotting disorders and medication effects.

Haematocrit (HCT) %

The percentage of your blood volume occupied by red blood cells. It reflects the balance between red blood cell production and loss, helping diagnose anemia, dehydration, and polycythemia.

MCV (Mean Corpuscular Volume) fL

The average size of your red blood cells. Small cells (microcytic) suggest iron deficiency, while large cells (macrocytic) may indicate vitamin B12 or folate deficiency. Normal-sized cells with low count suggest chronic disease.

MCH (Mean Corpuscular Hemoglobin) pg

The average amount of hemoglobin in each red blood cell. Low MCH indicates that red blood cells carry less oxygen than normal, commonly seen in iron-deficiency anemia.

Neutrophils absolute × 10⁹/L

The most abundant type of white blood cell, forming the first line of defense against bacterial and fungal infections. Elevated neutrophils typically indicate active infection or inflammation.

Lymphocytes absolute × 10⁹/L

Measures the number of lymphocytes, including B cells and T cells that drive adaptive immunity. Elevated levels may indicate viral infections, while low levels can signal immune deficiency or HIV.

Monocytes absolute × 10⁹/L

Measures monocytes, the largest white blood cells. They mature into macrophages in tissues, where they engulf pathogens and dead cells. Elevated monocytes can indicate chronic infection or inflammatory conditions.

Eosinophils absolute × 10⁹/L

Measures eosinophils, white blood cells involved in fighting parasitic infections and mediating allergic responses. Elevated levels are associated with allergies, asthma, parasitic infections, and certain autoimmune conditions.

Basophils absolute × 10⁹/L

The rarest type of white blood cell, involved in allergic reactions and inflammatory responses. Basophils release histamine and heparin, contributing to immediate hypersensitivity reactions.

Transferrin saturation %

The percentage of transferrin (iron-transporting protein) that is carrying iron. Calculated from serum iron and TIBC. Low saturation indicates iron deficiency; high saturation may indicate hemochromatosis (iron overload).

TSH (Thyroid-Stimulating Hormone) mIU/L

The primary screening test for thyroid function. TSH is produced by the pituitary gland to regulate thyroid hormone production. High TSH indicates an underactive thyroid (hypothyroidism), while low TSH suggests an overactive thyroid (hyperthyroidism).

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Price
$288.00 $360.00

20% off during 12 Days of Questmas; additional $6.00 Physician Service Fee

Category
Diagnostic
Sample Type
Blood draw
Duration
30 min
Results
4 days