Thiamine is vitamin B1, a member of the B complex group of vitamins. It’s especially important in the body for nervous system and muscle function. Thiamine acts as a coenzyme for carbohydrate and amino acid metabolism. Your body needs this B vitamin to produce hydrochloric acid so you can digest your food properly. Vitamin B1 is closely tied to energy, cholesterol and neurotransmitter production in the body.
A vitamin B1 blood test tests for deficiencies or excesses of the vitamin.
Normal Ranges for Vitamin B1 in ug/dL:
Adults: 2.5-7.5 ug/dL
Critical Range: outside the normal range
Sources:
Vitamin B1 deficiency can start out with fatigue, depression, irritability, sleep disturbances, GI disturbances from carbohydrates, and neuropathy (burning feet sensation). Deficiency is called beriberi. It can lead to rapid heart rate and heart enlargement. This could then cause breathing difficulties and congestive heart failure.
Beriberi can also cause mental and cognitive impairments when related to alcohol abuse. Some of these symptoms of vitamin deficiency include dementia, amnesia, confusion, abnormal eye movements, seizures and difficulty walking,
The needs for vitamin B1 increase during pregnancy, breast feeding, strenuous activity, growth spurts and during a fever.
Some specific causes of low vitamin B1 might be:
- Poor dietary intake
- Chronic alcohol consumption
- Anorexia
- Gastric bypass surgery
- Diabetes
- Dieting
- Consuming African silkworms or ferns (These foods contain an enzyme called thiaminase that destroys thiamine.)
- Consuming tea and coffee (decaffeinated or caffeinated) in large amounts (contains thiaminase)
- Consuming raw, fresh-water fish or raw shellfish (These foods contain thiaminase.)
- The use of diuretics
- Digestive disorders (Crohn’s disease, celiac disease, absorption of nutrient problems)
- Kidney dialysis
Understand and improve your laboratory results with our health dashboard.
Upload your lab reports and get interpretation today.
Our technology helps to understand, combine, track, organize, and act on your medical lab test results.
High levels of thiamine are rare but may occur if excessive amounts of the vitamin are consumed, either in supplements or from foods.
Interpret Your Lab Results
Upload your lab report and we’ll interpret and provide you with recomendations today.
Get StartedGet Started With Our Personal Plan
Advanced Plan
Unlimited Plan
Are You a Health Professional?
Get started with our professional plan
Welcome to Healthmatters Pro.
Save time on interpreting lab results with the largest database of biomarkers online. In-depth research on any test at your fingertips, all stored and tracked in one place. Learn more
Pro Plan
for health professionals
$45 per month
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.
Antiparietal Cell Antibody, Calcitriol (1,25 di-OH Vit D), Copper, Pl, Intrinsic Factor Antibodies (Serum), Intrinsic Factor Blocking Antibody, Manganese, Methylmalonic Acid, Serum, Nicotinamide, Nicotinic Acid, Phosphate (Phosphorus), Vitamin A, Vitamin B1 (Thiamine), Vitamin B12, Vitamin B2 (Riboflavin), Plasma, Vitamin B2, Whole Blood, Vitamin B3 (Niacin), Vitamin B6, Vitamin B9 (Folate), Vitamin C, Vitamin D, 25-Hydroxy, Vitamin E (Tocopherol), Vitamin K, Zinc, RBC