Essential B vitamin for energy metabolism, nervous system function, and cardiovascular health. Learn about thiamine benefits, sources, and deficiency prevention.
Explore Vitamin B1 supplements and browse options based on ingredient research.
Vitamin B1, also known as thiamine, is a water-soluble vitamin that plays a crucial role in energy metabolism. As one of the eight B vitamins, thiamine is essential for converting nutrients into adenosine triphosphate (ATP), the primary energy currency of cells.
Thiamine is converted to its active form, thiamine diphosphate (TDP), which serves as a coenzyme in several metabolic pathways. It's particularly important for carbohydrate metabolism and neurotransmitter synthesis.
Thiamine is essential for converting carbohydrates into energy. It serves as a coenzyme for pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase, enzymes critical for the Krebs cycle and energy production in cells.
Vitamin B1 is crucial for nervous system function. It supports the production of acetylcholine, a neurotransmitter important for memory and learning. Thiamine deficiency can lead to severe neurological symptoms including confusion, memory loss, and peripheral neuropathy.
Thiamine supports cardiovascular health by helping maintain proper heart muscle function. It plays a role in energy production within heart cells and may help prevent certain cardiovascular complications.
Adequate thiamine levels are essential for optimal brain function. It supports cognitive processes, memory, and may help protect against age-related cognitive decline.
Thiamine supports the production of hydrochloric acid in the stomach and aids in the proper functioning of the digestive system.
Thiamine is found in a variety of foods, with particularly high concentrations in pork, whole grains, and legumes. Processing and refining can significantly reduce thiamine content.
| Food Source | Amount | Thiamine Content |
|---|---|---|
| Pork (lean) | 3 oz (85g) | 0.8 mg |
| Black Beans (cooked) | 1 cup | 0.4 mg |
| Lentils (cooked) | 1 cup | 0.3 mg |
| Green Peas (cooked) | 1 cup | 0.3 mg |
| Acorn Squash (cooked) | 1 cup | 0.3 mg |
| Brown Rice (cooked) | 1 cup | 0.2 mg |
| Whole Wheat Pasta (cooked) | 1 cup | 0.2 mg |
| Fortified Breakfast Cereal | 1 cup | 0.4 mg |
| Yeast | 1 tbsp | 0.1 mg |
| Age Group | RDA (mg/day) | Upper Limit |
|---|---|---|
| Infants 0-6 months | 0.2 | Not established |
| Infants 7-12 months | 0.3 | Not established |
| Children 1-3 years | 0.5 | Not established |
| Children 4-8 years | 0.6 | Not established |
| Children 9-13 years | 0.9 | Not established |
| Males 14+ years | 1.2 | Not established |
| Females 14+ years | 1.1 | Not established |
| Pregnant women | 1.4 | Not established |
| Lactating women | 1.5 | Not established |
Thiamine is water-soluble and readily absorbed in the small intestine. However, certain factors can affect absorption, including alcohol consumption, gastrointestinal disorders, and some medications.
Beriberi is the classic thiamine deficiency disease with two main forms: wet beriberi (affects heart) and dry beriberi (affects nerves). Wet beriberi causes cardiovascular symptoms, while dry beriberi leads to neurological symptoms.
This neurological disorder is common in chronic alcoholics and results from thiamine deficiency. It causes confusion, memory loss, and coordination problems.
Research shows thiamine supplementation may benefit various neurological conditions. Benfotiamine has been studied for diabetic neuropathy, showing potential to reduce nerve pain and improve nerve function.
Some studies suggest thiamine may help prevent heart failure complications and support cardiac function. Research indicates thiamine deficiency may contribute to heart disease in some populations.
Emerging research explores thiamine's role in cognitive health. Some studies suggest thiamine supplementation may help prevent or slow age-related cognitive decline.
Thiamine supplementation is standard treatment for Wernicke-Korsakoff syndrome and has shown benefit in preventing alcohol-related brain damage.
Use our research tool to explore Vitamin B1 supplements and see what studies have examined.
Thiamine may interact with certain medications. Consult healthcare provider if taking: