Vitamin B2 (Riboflavin)


What is it?

Vitamin B2 or Riboflavin is a water soluble vitamin.

What does it do?

  • Energy production, B2 is involved in the metabolism of fats, protein and carbohydrates.
  • Involved in the maintenance and repair of skin and mucus membranes (e.g. gut and respiratory system).

Deficiency Symptoms

  • Cracked lips and cracks at the corner of the mouth
  • Sore tongue
  • Burning or itchy eyes
  • Skin problems, e.g eczema or dermatitis

Recommended Daily Amount (RDA)

Children 0.4-1.1mg
Adults 1.1 – 1.3mg

B vitamins tend to function best when in combination with the other B vitamins, rather than in isolation, it is usually recommended that it B2 is supplemented as part of a B complex.

B2 can often turn the urine a bright yellow-green, this is completely natural and no cause for concern.

Therapeutic amounts are generally considered to be higher than RDAs.

Food Sources

Organ meats e.g. liver, almonds, mushrooms, wholegrains, liver, watercress, asparagus, green leafy vegetables.

Safety Considerations

There are no associations with toxicity.


Please note that products, product info and all other info on this site (including multimedia content & links) are not intended for treating or diagnosing specific medical conditions. If you are unwell, pregnant, or on medication, please consult a doctor before starting supplements. Do not exceed recommended dosages and please keep all supplements out of the reach and sight of children.