Lab test

Vitamin B2 Test - Riboflavin Deficiency

This blood test evaluates vitamin B2 (riboflavin) levels and can help determine whether a deficiency is present.

Typical price

From $120

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 B2 (riboflavin) levels and can help determine whether a deficiency is present. Vitamin B2 is important for energy production and for the normal function of several other vitamins and enzymes. The test may be ordered when a provider suspects a nutritional deficiency or wants to assess vitamin status in someone with a restricted diet, malabsorption, or symptoms that could relate to low riboflavin. It is usually interpreted together with other vitamin and nutritional tests and your clinical picture.

• Vitamin B2 (riboflavin) Measures the level of this B vitamin in the blood.

• People with restricted or poor diets
• Individuals with digestive conditions affecting absorption
• People with symptoms that may relate to a B vitamin deficiency
• Those being assessed with a broader nutritional panel

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

A low riboflavin level may indicate deficiency, which can relate to diet or absorption problems, while high levels usually reflect recent supplements. Because the symptoms of riboflavin deficiency overlap with other conditions, results are interpreted with your diet, history, and other vitamin tests. Discuss results with a healthcare provider.

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