Vitamin B2

Vitamin B2

Riboflavin contributes to normal energy-yielding metabolism, normal functioning of the nervous system, the maintenance of normal mucous membranes, the maintenance of normal red blood cells, the maintenance of normal skin and vision, the normal metabolism of iron, the protection of cells from oxidative stress, and the reduction in tiredness and fatigue.

Good food sources include mushrooms, milk, eggs and fortified cereals.

Daily requirements (age 19-64) are 1.3mg for men and 1.1mg for women.

​Deficiency can cause a sore mouth and tongue, skin problems, dizzy spells, trembling, tired or gritty eyes, mouth ulcers, poor concentration and memory problems.


  • Riboflavin can not be stored so must be consumed every day!
  • Prolonged oral contraceptive use can lead to deficiency
  • Excess alcohol can cause deficiency


  • Deficiency may reduce iron metabolism and cause anaemia.