OneDayTests Vitamin B1 (Thiamine) Blood Test
Type
Blood Testing
Biomarkers
3
Duration
30 min
Results
4 days
This test assesses thiamine deficiency, indicating potential health risks.
This blood test measures thiamine (vitamin B1) levels to detect deficiencies. Low levels can cause weakness, fatigue, nerve damage, and cardiovascular problems. The test is crucial for individuals with symptoms like fatigue or nerve issues, or those with inadequate thiamine intake. It helps diagnose deficiency, enabling timely treatment and lifestyle adjustments to prevent serious complications. Results are delivered via email and our Health Dashboard.
Key Details
Who Is This For?
Vegetarians and vegans (at higher risk of B12, iron, and zinc deficiency). Older adults, as nutrient absorption decreases with age. Anyone on restrictive diets or with digestive conditions affecting absorption. People experiencing unexplained fatigue, brain fog, poor wound healing, or hair loss. Athletes with high nutrient demands from training.
What's Included
Preparation Required
Fasting for 8–10 hours is recommended for some nutrient tests but not all — check with your provider. Continue taking your regular supplements unless told otherwise (the test measures your steady-state levels). Morning draws are preferred for consistent results.
Biomarkers Tested
3Essential for energy metabolism and nervous system function. Thiamine deficiency can cause beriberi (nerve damage) and Wernicke-Korsakoff syndrome. Common in chronic alcohol use and malabsorption conditions.
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.
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.
Available at 29 locations
View on mapMore from OneDayTests
Ultimate Longevity Blood Test
$290Comprehensive blood test analyzing 66 biomarkers for a detailed health assessment.
Cholesterol Blood Test
$37Comprehensive blood test to analyze cholesterol levels and assess cardiovascular risks.
Liver Function Blood Test
$35Comprehensive liver function blood test measuring liver enzymes, proteins, and bilirubin to assess liver health.
Ultimate Performance Blood Test
$190Comprehensive blood test analyzing 57 biomarkers for detailed health insights and performance optimization.
Subscription plans offer discounts (up to 20% off)
- Category
- Diagnostic
- Sample Type
- Blood draw
- Duration
- 30 min
- Results
- 4 days
OneDayTests
Quick access to same-day medical testing with fast results for better health decisions.
