Vitamin B1

Vitamin B1

Thiamin contributes to normal energy-yielding metabolism, normal functioning of the nervous system, normal psychological function and normal function of the heart.

Good food sources include nuts, peals, wholegrain breads, some fortified cereals and some fruits like bananas and oranges.

Daily requirements (age 19-64) for men are 1mg and women are 0.8mg.

Deficiency can cause nausea, vomiting, fatigue, weakness, memory problems, cramps, nerve pain and headaches. Severe deficiency can lead to hearing loss and organ damage including to the brain and heart.


  • Thiamine is not stored so you need to consume it everyday!
  • Prolonged use of oral contraceptives can cause deficiency
  • Excess alcohol intake can lead to deficiency and you can be prescribed Vitamin B by your Doctor to prevent long term damage