Research Vault / Cellular health
Cellular health · Evidence guide
Vitamin B1 / Thiamine
An essential vitamin that helps enzymes process nutrients.
Reviewed October 1, 2026 · Sources linked below
How it works
Thiamine diphosphate is a cofactor in glucose, amino-acid and lipid metabolism. It supports enzyme reactions rather than supplying calories itself.
01Thiamine diphosphate
02Enzyme cofactor
03Nutrient metabolism
Simplified mechanism map. It does not represent a proven treatment outcome.
What the evidence can tell us
The consequences of deficiency are well established. Benefits from correcting deficiency do not mean extra thiamine improves energy in a person with adequate status.
Safety and important limits
Alcohol dependence, malabsorption and some medicines can affect status. Suspected deficiency, neurological symptoms or persistent fatigue deserve clinical assessment.
This is a learning guide, not a recommendation to begin a supplement. Baseline nutrition, medicines and health conditions affect what is appropriate.