Lab test

Vitamin B1 Test - Vitamin Deficiency Tests

This blood test evaluates vitamin B1 (thiamine) levels and can help determine whether a deficiency is present.

Typical price

From $136

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 B1 (thiamine) levels and can help determine whether a deficiency is present. Vitamin B1 is a water-soluble B vitamin with a wide range of uses in the body, including energy metabolism and normal nerve and heart function. The test may be ordered when a person has symptoms or a history that raises concern about thiamine deficiency, such as prolonged poor nutrition, heavy alcohol use, or digestive problems that affect absorption. It is often interpreted with other vitamin and nutritional tests.

• Vitamin B1 (thiamine) Measures the level of this B vitamin in the blood.

• People with prolonged poor nutrition or restricted diets
• Individuals with heavy alcohol use
• People with digestive conditions that affect absorption
• Those with fatigue, nerve, or heart symptoms being evaluated

• 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 vitamin B1 level may indicate deficiency, which can relate to poor intake, alcohol use, or absorption problems. High levels are usually related to supplements. Because some symptoms of deficiency are not specific, the result is interpreted with your diet, history, and other nutritional tests. Discuss results with a healthcare provider for guidance.

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