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B12 deficiency: The sign around the eyes that may be warning that levels are low

The body's extremities are a well-known site for complications associated with low levels because they are sensitive to touch.

If levels remain suboptimal for long periods, pins and needles or burning sensations may occur.

This is because the sheath that surrounds and protects the nerves becomes damaged, which leads to peripheral neuropathy.

Other symptoms linked to B12 deficiency include fatigue, pale skin, weight loss, pins and needles and a sore red tongue. 

Although the extremities are typically the first areas of the body to pick up on nerve damage, signs may occasionally arise around the eyes too.

According to the health body Medical Daily: "Eye twitching and eyelid spasms are also signs that could help pinpoint vitamin B12 deficiency."

This uncomfortable twitching, scientifically known as eye blepharospasm, can occur in the eye or in other areas surrounding the eye.

Research states that the condition can be reversed, with some evidence suggesting that administration of B12 may help.

In the journal Neurology India, researchers wrote: "[...] Blepharospasm can be a rare manifestation of vitamin B12 deficiency, which is reversible with therapy.

"Vitamin B12 levels and homocysteine levels should be tested in patients with blepharospasm in whom there is no obvious cause for blepharospasm."

The authors went on to stress that although the condition can be a manifestation of vitamin B12, it remains a rare one.

Low to treat B12 deficiency

B12 is naturally found in animal products, so people who eat enough fish, meat, eggs, and dairy will rarely be deficient.

Those with a dietary deficiency, however, will sometimes be offered supplementation.

Others who are unable to absorb the nutrient naturally may be given a B12 infection to top up levels.

B12 infections can only be administered under prescription in the UK. 

Reference: Daily Express: Solen Le Net