1.2 mg for adult males and 1.1 mg for women - 1.5 mg if lactating.
Children need .6 to .9 mg of B1/thiamine per day.
Vitamin B1/thiamine is important in the production of energy. It helps the body cells convert carbohydrates into energy. It is also essential for the functioning of the heart, muscles, and nervous system. Not getting enough thiamine can leave one fatigued and weak.
Note: Most fruits and vegetables are not a significant source of thiamine.
Wheat - Durum
Wheat - Hard Red
Wheat - Hard White