Thiamin

Commonly noted

Commonly noted

Thiamin (vitamin B1) is a water-soluble vitamin the body uses to turn carbohydrates from food into energy and to support normal nerve and muscle function; it is found in whole grains, pork, legumes, and seeds.

Low intake

Low thiamin intake is commonly discussed in relation to tiredness and, in more severe and long-standing shortfalls, nerve and heart changes (historically known as beriberi).

Higher intake

Thiamin from food and supplements has not been shown to cause harm, and no upper intake level has been set.

Source: NIH ODS

Reference intakes

General reference figures for a typical adult, not a personal target.

• rdaadult_female1.1 mgDRI/NASEM
• rdaadult_male1.2 mgDRI/NASEM