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Vitamin C Blood Test

Type

Blood Testing

Biomarkers

11

Duration

15 min

Results

3 days

Checks vitamin levels to identify deficiencies that may affect energy, immunity, and overall health.

This blood test measures specific biomarkers to provide targeted health insights. Blood testing is the most common diagnostic tool in medicine, offering objective data about how your body is functioning at a cellular and molecular level. Whether screening for a specific condition, monitoring treatment effectiveness, or establishing a baseline for future comparison, individual blood tests give you and your healthcare provider precise, actionable information. Results are analyzed by a certified laboratory and compared against established reference ranges for your age and sex.

Key Details

Sample Type
Blood draw
Turnaround
1–5 business days
Common Use
Targeted health screening

Who Is This For?

Anyone wanting to check specific health markers. People monitoring known conditions or treatment effectiveness. Those who want targeted testing rather than a comprehensive panel. Individuals following up on previous abnormal results or investigating specific symptoms.

What's Included

Specific biomarker measurement as indicated by test name
Lab analysis with reference ranges

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.

Panel Categories

Vitamin and Nutrient Panel

Biomarkers Tested

11
Copper µg/dL

A trace mineral essential for iron metabolism, connective tissue formation, and antioxidant defense. The copper/zinc ratio is an emerging marker of inflammation and oxidative stress. Both deficiency and excess can cause problems.

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.

Magnesium mg/dL

Involved in over 300 enzymatic reactions including energy production, muscle function, and nerve signaling. Magnesium deficiency is common and associated with muscle cramps, anxiety, insomnia, and increased cardiovascular risk.

Selenium µg/L

A trace mineral crucial for thyroid hormone metabolism, antioxidant defense (via selenoproteins), and immune function. Selenium deficiency can impair thyroid function and increase susceptibility to viral infections.

Vitamin A (Retinol) µg/dL

A fat-soluble vitamin essential for vision, immune function, skin health, and cell growth. Both deficiency and excess can cause health problems. Levels are tightly regulated by the liver.

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 C mg/dL

A powerful water-soluble antioxidant essential for collagen synthesis, immune function, and iron absorption. Vitamin C deficiency causes scurvy. It also supports wound healing and protects against oxidative stress.

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.

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 K ng/mL

Essential for blood clotting and bone metabolism. Vitamin K activates proteins needed for blood coagulation and calcium regulation in bones. Deficiency increases bleeding risk and may contribute to osteoporosis.

Zinc µg/dL

An essential trace mineral involved in immune function, wound healing, DNA synthesis, and testosterone production. Zinc deficiency impairs immune response, delays wound healing, and can cause hair loss and taste changes.

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