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Vitamin B1

Vitamin B1

£112.50
This add-on measures Vitamin B1, vital for energy, nerves, and heart health. Low levels may cause fatigue or nerve issues. Adds 6 business days to results delivery.
ADD TO A BLOOD TEST
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About this test

  • Fatigue or general weakness
  • Irritability or mood changes
  • Poor memory or difficulty concentrating
  • Tingling or numbness in hands and feet
  • Muscle weakness or cramps
  • Loss of appetite
  • Unintentional weight loss
  • Rapid heart rate or shortness of breath
  • Swelling in the lower legs
  • Confusion or disorientation (in severe cases)
  • No symptoms at all in early or mild deficiency

Recommended for individuals experiencing fatigue, nerve-related symptoms, or poor appetite, especially those with restricted diets, alcohol dependence, or digestive conditions that affect nutrient absorption. Also ideal for people with unexplained neurological symptoms, those on diuretics or long-term medications, or anyone taking a proactive approach to monitoring essential vitamin levels and supporting energy metabolism.

  • Thiamine (Vitamin B1) deficiency
  • Beriberi (dry and wet forms)
  • Wernicke’s encephalopathy
  • Korsakoff syndrome
  • Chronic alcohol use disorder
  • Malabsorption syndromes (e.g. coeliac disease, IBD)
  • Prolonged fasting or restrictive diets
  • Heart failure (especially in patients on diuretics)
  • Diabetes-related nutrient depletion
  • Post-bariatric surgery nutritional monitoring

Symptoms

  • Fatigue or general weakness
  • Irritability or mood changes
  • Poor memory or difficulty concentrating
  • Tingling or numbness in hands and feet
  • Muscle weakness or cramps
  • Loss of appetite
  • Unintentional weight loss
  • Rapid heart rate or shortness of breath
  • Swelling in the lower legs
  • Confusion or disorientation (in severe cases)
  • No symptoms at all in early or mild deficiency

Who should be test

Recommended for individuals experiencing fatigue, nerve-related symptoms, or poor appetite, especially those with restricted diets, alcohol dependence, or digestive conditions that affect nutrient absorption. Also ideal for people with unexplained neurological symptoms, those on diuretics or long-term medications, or anyone taking a proactive approach to monitoring essential vitamin levels and supporting energy metabolism.

When to test

  • Thiamine (Vitamin B1) deficiency
  • Beriberi (dry and wet forms)
  • Wernicke’s encephalopathy
  • Korsakoff syndrome
  • Chronic alcohol use disorder
  • Malabsorption syndromes (e.g. coeliac disease, IBD)
  • Prolonged fasting or restrictive diets
  • Heart failure (especially in patients on diuretics)
  • Diabetes-related nutrient depletion
  • Post-bariatric surgery nutritional monitoring

What's measured

What gets tested

Complete panel for your health

Vitamins and Minerals

Vitamin B1 (Thiamine): This is a B-vitamin essential for energy metabolism, nerve function, and carbohydrate processing, and is measured to assess nutritional and neurological health.