B12 levels are exceptionally low among vegetarians and vegans because the plants do not produce or require the nutrient.
However, it is believed that up to one in 10 over the age of 75 is also deficient, because his body can’t absorb B12.
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Signs of a deficiency occasionally arise around the eyesespecially in the form of uncomfortable spasms.
Research to date suggests that the condition it can be easily reversed.
B12 is a key nutrient involved in the production of red blood cells, which converts food into energy and keeps the nervous system healthy.
The extremities of the body are a well-known site of complications associated with low levels because they are sensitive to touch.
If levels remain suboptimal for prolonged periods, prickling or burning sensations may occur.
This is because the sheath that surrounds and protects the nerves is damagedwhich leads to a peripheral neuropathy.
Other symptoms related to B12 deficiency include fatigue, pale skin, weight loss, red tingling and sore tongue.
Although the extremities are usually the first areas of the body to detect nerve damage, they also occasionally signs may appear around the eyes.
According to the health agency Medical Daily: «Twitching of the eyelids and eye twitching are also signs that could help identify vitamin B12 deficiency«.
This uncomfortable spasm, scientifically known as eye blepharospasm, it can occur in the eye or in other areas around it.
Research claims the condition can be reversed, with some evidence suggesting that B12 administration can help.
In the magazine Neurology Indiathe researchers wrote: “[…] Blepharospasm may be a rare manifestation of vitamin B12 deficiency, which is reversible with therapy.
«Vitamin B12 and homocysteine levels should be tested in patients with blepharospasm where there is no obvious cause for the blepharospasm.»
The authors went on to emphasize that although the condition may be a manifestation of vitamin B12, is still rare.
How to treat B12 deficiency
B12 is found naturally in animal productsso the people who eat enough fish, meat, eggs, and dairy will rarely be deficient.
For those with a dietary deficiency, whether by taste or conviction, sometimes they will be offered supplements to avoid deficiency.
Other people who cannot absorb the nutrient naturally can be given a B12 injection to boost levels. However, this type of dose should be recommended a doctor.
Typically, this procedure will be administered six times over a two-week period, unless the patient is already experiencing neurological symptoms, in which case more may be required.
As a general rule, the UK government recommends 1.5 micrograms a day for adults.
Improved accessibility to intravenous B12 treatment could maintain better levels for longer periods of time.