Vitamin B1 (Thiamine)


The role of thiamine in the metabolism of carbohydrates and the alcohol is essential. The thiamine triphosphate have a neurotransmitter, which could explain some of the neurological disorders and brain observed in cases of severe deficiency.

The body stores of vitamin B1 are low, concentrated mainly in the liver, muscles, kidneys and nervous system. These reserves were estimated at about 30 mg in adult humans and half-life of thiamine is understood, in normal humans, between 9 and 18 days.

The pivotal role played by B1-dependent enzymes in carbohydrate metabolism explains that the need for vitamin B1 is partly dependent on carbohydrate intake.

Sources of Vitamin B1 (Thiamine)

See the list of foods that provide the most vitamin B1


The 100% value in the RNI Nutrimeter ® is 1.3 mg per day for an adult man and 1.1 mg per day for an adult woman.

Vitamin B1 administered in excess of needs is easily excreted by the kidney. It did not seem necessary for experts to set a limit dose safety daily food consumption of thiamine.

(Source: "Recommended dietary allowances for the French population," the CNERNA-CNRS. Edition coordinated by Ambroise Martin.)