There are eight essential B vitamins which experts say are important for the body.
Vitamin B1 helps keep the nervous system healthy, B2 keeps the skin and eyes healthy, vitamin B3 helps release energy from the foods we eat, and vitamin B7 helps the body break down fat.
But which one is best when it comes to brain function?
Vitamin B12 is vital for proper brain function according to Holland & Barrett.
It says: “A deficiency of B12 leaves your body vulnerable to the effects of stress and the deterioration associated with ageing.
“Vitamin B12 is often missing from the diets of vegetarians and vegans as its most commonly found in meat and fish, so it’s worth considering taking a supplement.”
Which other B vitamins does the high street health store class as most important?
It explains: “B9 (also known as folate) helps protect against irritability, as well as physical and emotional stress.
“It helps rebuild DNA, fights the ageing process and is essential for pregnant women to protect against birth defects like spina bifida forming in the foetus.
“Both vitamin B12 and folate work together to create red blood cells and the building blocks of DNA, and B6 is needed for more than 100 cellular reactions in the body.”
Vitamin B12 deficiency can be detrimental to a person’s health, but how do you know if you have one?
One of the symptoms of the condition to watch out or is blurred vision.
Blurred vision can occur when untreated B12 deficiency causes nervous system damage to the optic nerve that leads to your eyes.
This was found in a study titled ‘B12 deficiency with neurological manifestations in the absence of anaemia’.
The damage can play havoc on the nervous signal that travels from the eye to the brain, therefore impairing vision.
Optic neuropathy is the correct medical term for this condition.
While the can be alarming, experts advise it is reversible by supplementing B12.
Another sign of vitamin B12 deficiency is in the toenails.
According to the Health Science Journal, vitamin B12 is important when it comes to treating brittle nails that may break easily.
It adds: “Lack of this vitamin may cause toenail fungus and other similar infections as the nails are prone to these conditions.
“In addition, nails may turn dark when the body does not get enough vitamin B12.”
So how can you avoid a vitamin B12 deficiency happening in the first place?