Vitamin B12 deficiency becomes progressively worse over time, resulting in an increase in seemingly harmless symptoms. Though, as the nutrient is required to create healthy blood cells, the damage could become permanent.

Damaged red blood cells cause less oxygen to be carried into the body and, as everyone knows, oxygen is vital for being alive.

Lack of healthy blood cells first appears as signs of anemia, so watch out for your coloring.

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According to experts, “pale skin” is one of the visible signs of anaemia.

Another usual symptom of fewer, healthy red blood cells include “hearing sounds coming from inside the body, rather than from an outside source”.

This is called tinnitus, when you think you can hear something that no one else can hear.

You may feel ringing, buzzing, whooshing, or humming sound; for some, the condition may also cause a hissing, throbbing, or music tune.

“You may hear these sounds in one or both ears, or in your head,” said experts from NHS.

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“They may come and go, or you might hear them all the time.”

Some symptoms are more specific to anaemia due to vitamin B12 deficiency.

For example, a painful, red tongue – known as glossitis – is an indicator that your body is deficient in vital nutrient.

Another indicator of vitamin B12 deficiency is when you have mouth ulcers.

Ulcers appear in the interior of the mouth, particularly on the cheeks or lips, or even on the tongue.

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A lack of vitamin B12 can even affect the eyes because it can cause “vision disorders”.

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