Part of the B group of vitamins, vitamin B2 (or riboflavin) is important
for producing energy and is needed for ensuring our nervous system
works properly. It’s also essential for healthy eyesight, skin and red
blood cells, and can help prevent us feeling tired.
What happens if I don’t get enough?
The most obvious signs of a vitamin B2 deficiency are skin problems,
especially scaly, dry and flaky patches around the nose and cracks
around the mouth. Some people also experience a sore tongue and have
bloodshot eyes that feel as though they have grit in them. Riboflavin is
one of the few B vitamins that certain groups of people have low
intakes of – in particular, teenagers (21% of 11 to 18-year-old girls
and 9% of 11 to 18-year-old boys have exceptionally low intakes, putting
them at risk of a deficiency). In adults, 12% of women and 5% of men
fail to get enough vitamin B2 in their diets. Fortunately, though, a
full-blown deficiency is rare as the body is very good at conserving and
re-using its store of this nutrient.
How much do I need each day?
The Nutrient Reference Value (NRV) for vitamin B2, which you’ll see on
food labels, is 1.4mg. But there are more detailed guidelines in the UK
for vitamin B2 needs at specific ages and stages in life:
Females
19+ yr = 1.1mg
In pregnancy = 1.4mg
Breastfeeding = 1.6mg
Males
19+ yr = 1.3mg
Children
11-18 yr (girls) = 1.1mg
15-18 yr (boys) = 1.3mg
11-14yr (boys) = 1.2mg
7-10yr = 1mg
4-6yr = 0.8mg
1-3yr = 0.6mg
The main sources
Offal is loaded with vitamin B2, but it’s also present in a whole host
of more everyday foods. Top choices to ensure you get enough include
eggs, fish, meat, poultry, milk and other dairy products, as well as
fortified breakfast cereals.
Migraine prevention
Studies have found that taking a high-dose (400mg) supplement of vitamin
B2 each day can help to prevent migraines. However, this doesn’t seem
to have an effect on the amount of pain or duration of the migraine if
you do get one. If you’re a regular sufferer and are keen to give the
supplement a go, discuss it with your GP beforehand.
The Cataract link
A poor intake of vitamin B2 has been linked to an increased risk of
cataracts. Taking a B2 supplement together with vitamin B3 (niacin) has
been shown to help protect against this eye complaint.
An Antioxidant boost
Like vitamins A, C and E, vitamin B2 is an antioxidant, so it can help
protect cells from damage that can lead to major health problems, such
as cancer or heart disease.
