Day: June 29, 2021

Thiamin – Consumer

This is a reader-friendly overview of Thiamin. For more details, see our health professional fact sheet on Thiamin.

What is thiamin and what does it do?

Thiamin (also called vitamin B1) helps turn the food you eat into the energy you need. Thiamin is important for the growth, development, and function of the cells in your body.

How much thiamin do I need?

The amount of thiamin you need depends on your age and sex. Average daily recommended amounts are listed below in milligrams (mg).







Life Stage Recommended Amount
Birth to 6 months 0.2 mg
Infants 7–12 months 0.3 mg
Children 1–3 years 0.5 mg
Children 4–8 years 0.6 mg
Children 9–13 years 0.9 mg
Teen boys 14–18 years 1.2
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