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Symptoms Of Vitamin B12 Deficiency That You Need To Be Aware Of

By Sravia Sivaram

We can get sick due to several reasons but we hardly think of the underlying reason for falling sick. All that we do is treat the symptoms.

This approach can suppress the symptoms for sometime, but can do nothing about curing it.

We are often so busy caught up with life that we ignore the symptoms and signs that our body shows.

For example, if we have pain in the legs, we go for a pain killer, but we often neglect the vitamin deficiencies that are responsible for this pain to occur.

There are several importances of vitamin B12 and its deficiency can lead to many repercussions. It helps in making healthy DNA and nerve and blood cells, and is also essential for a healthy immune system and healthy DNA. This article will let you know what are the signs of vitamin B12 deficiency.

Vitamin B12 can be found in foods like dairy, shellfish, eggs, meat and so on.

Vegetarians are more likely to suffer from vitamin B12 deficiency. Further, people with celiac disease, digestion problems as well as those who are over 50 years old are also under the risk.

In this article we have listed some of the top symptoms of vitamin B12 deficiency. So, continue reading in order to find out the signs of B12 deficiency.

Scroll down further to know all about vitamin B12 deficiency symptoms.


1. Extreme Fatigue:

One of the reasons that you suffer from fatigue is when you're deficient in vitamin B12. This is because your body utilises this very vitamin to make blood cells, which help carry oxygen to the blood. So, if your cells do not get enough oxygen, then you're likely to suffer from tiredness and fatigue.


2. Sluggishness:

If you feel your body is not as active as before and you feel slow and run down, then this is also one of the symptoms of vitamin B12 deficiency. Further, your muscles will become weak and you will even find it difficult to carry your oxygen mask.


3. Pins And Needles Sensation:

Some people do feel an electric current through the body or can experience sudden bouts of needles piercing and pain. This is one of the top symptoms of vitamin B12 deficiency.


4. Forgetfulness:

Some examples of this can be, you might enter into the kitchen to get something, but you forget why you entered. Trying to find your glasses all around you, when it is already on your head are some of the incidents that you need to take into account as part of vitamin B12 deficiency.


5. Shallow Complexion:

You may notice that your complexion might have suddenly turned yellowish. If you are deficient in vitamin B12, the red blood cells that you have are already broken. This causes a release of bilirubin that changes the complexion of the skin to yellow.


6. Tongue Texture Changes:

There are tiny red bumps called papillae on the tongue. People tend to lose it when they are deficient in vitamin B12. This makes them lose their sense of taste as most of the papillae contain the taste buds.


7. Moody And Irritable:

When you are deficient in this vitamin, your emotions will go for a toss. You may feel depressed all the time for no reason. This is because vitamin B12 is necessary to synthesize the two brain chemicals dopamine and serotonin. Its deficiency will fail to regulate the mood. This is also one of the signs of B12 deficiency.


8. Vision Problems:

Blurry vision and sensitivity to light are some of the symptoms of vitamin B12 deficiency. This is because lack of vitamin B12 can affect the optic nerve and also block the blood vessels in the retina.


9. Pernicious Anaemia:

Vitamin B12 deficiency can cause pernicious anaemia, a type of disease in which the necessary number of red blood cells are not present due to a reduction in B12.


10. Lack Of Appetite:

Lack of appetite is also one of the top symptoms of vitamin B12 deficiency. You might not get your regular hunger pangs and you would hardly want to eat anything at all.


11. Ringing In The Ears:

Ringing in the ears or tinnitus is also one of the signs of vitamin B12 deficiency. Vitamin B12 deficiency can lead to tinnitus, where a person will hear a ringing, buzzing, hissing, chirping or whistling sound in the ears.


12. Mouth Ulcers:

Vitamin B12 deficiency can also lead to the repeated occurrence of mouth ulcers. These can appear in the mouth, often on the inside of the cheeks. This is also one of the major vitamin B12 deficiency symptoms.

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