Lab test

Vitamin C Test - Vitamin Deficiency Testing

This blood test evaluates vitamin C (ascorbic acid) levels and can help determine whether a deficiency is present.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

This blood test evaluates vitamin C (ascorbic acid) levels and can help determine whether a deficiency is present. Vitamin C plays an important role in the growth and repair of tissues and helps the body absorb iron and form collagen. It is also an antioxidant. The test may be ordered when a provider suspects a deficiency related to a restricted diet, malabsorption, or increased needs, or when symptoms such as easy bruising or slow healing are being evaluated. Because vitamin C is water-soluble, levels reflect recent intake more than long-term stores.

• Vitamin C (ascorbic acid) Measures the level of this water-soluble vitamin in the blood.

• People with very restricted diets or malnutrition
• Individuals with symptoms such as easy bruising or slow wound healing
• People with conditions that affect nutrient absorption
• Those being assessed with a broader nutritional panel

• Fasting may be requested before the draw.
• Tell the collector about vitamin C supplements you take.
• Follow any instructions provided for your specific panel.

A low vitamin C level may suggest deficiency, which can relate to inadequate intake or absorption, while high levels usually reflect recent supplements. Because vitamin C is water-soluble and not stored in large amounts, the result reflects intake over recent days. Discuss results with a healthcare provider, who can interpret them with your diet and symptoms.

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