Vitamin B12 deficiency symptoms that should never be ignored - LIVE HEALTHY


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May 19, 2020

Vitamin B12 deficiency symptoms that should never be ignored

Vitamin B12 is extremely important for your body. It helps create DNA and red blood cells. But neither it stays in your body for a longer period, nor it produces in your body naturally. This can lead you to have a Vitamin B12 deficiency symptoms.

Vitamin B12 deficiency symptoms that should never be ignored

But how do you know you have it? Your body will show many signs and symptoms that clearly indicate the deficiency of vitamin B12.

Vitamin B12 deficiency symptoms

Blurred Vision

Vitamin B12 deficiency can affect your optic nerves. Due to this damage, you may have disrupted or blurred vision. 

The next time when you are not able to see well, don’t just run to grab new glasses. Get your B12 level checked. 

The good news about this symptom is that it can be recovered. Once you will fulfil your vitamin B12, your vision will be recovered.

Mood swings

There are a lot of reasons which causes mood swings. According to studies, vitamin B12 can also be a reason. 

As the vitamin level is fulfilled in your body, it will bring things back to normal unless you have a severe case of depression. If that’s the case, it would be better to visit a psychiatrist.

Messed Up Hand-Eye Coordination

Deficiency of vitamin B12 not only affects the optic nerves but also affect your nervous system. As a result, there is an imbalance between hand and eye. 

Unfortunately, most experts don't have enough conclusive evidence to know if this symptom is reversible.


Red blood cells carry oxygen throughout your body. When there are not enough red blood cells, there isn’t a sufficient supply of oxygen in different parts of your body. As a result, you will feel fatigued.

Pale Skin

Having pale skin is often associated with jaundice. But Vitamin B12 deficiency is also to blame. 

Lack of vitamin B12 leads to less supply of red blood cells in your body. This slows down the process of cell growth and prevents them from dividing. 

Without sufficient amount of RBC in your body, there isn't enough circulation of oxygen. This is why you get pale skin.


Vitamin B12 deficiency symptoms can make you feel like breathless. This is mostly seen in those people who are anaemic. Fortunately, it isn’t that common. 

There are many reasons which can cause breathlessness. You can’t really pinpoint just one. We will suggest you visit a doctor when you face this problem. 

If it is vitamin B12 deficiency, it will be reversible. You have to take Vitamin B12 supplements or foods rich in vitamin B12.


Glossitis is a condition in which you will have a feeling of burning sensation in your mouth. Additionally, your tongue will become smooth and taste buds will disappear. 

Your tongue will become red, swollen and painful. According to studies, deficiency of vitamin B12 causes glossitis. 

Some people faced other issues like an inflamed tongue or one of the other forms of a mouth ulcer.

Tingling Sensation

Vitamin B12 plays a major role in your nervous system. Its absence can cause several nerve-related problems. 

One of them is a tingling sensation, such as shaking hands and feet. If you are a vegetarian, you should add some vitamin B12 source in your diet.


Vitamin B12 deficiency affects a person's mood. Irritation is something which comes along with this deficiency. 

Vitamin B12 is helpful for breaking down a chemical known as homocysteine. It is found in your brain and when there is not enough Vitamin B12, your brain has too much of this chemical. 

It could lead to mental health problems. Keep in mind, this is only a hypothesis.

Stomach Problems

Vitamin B12 deficiency in your system isn't good news for your gut. This is because your stomach doesn't receive sufficient amount of oxygen if there is a lack of red blood cells in your body. 

In the absence of enough oxygen, many biochemical functions are not performed properly. One of these functions is digestion. 

If not treated, it could lead to diarrhoea. You will also feel nauseous during this time.

Weight Loss

The weight loss that you get because of Vitamin B12 deficiency isn't something to be happy about. 

Lack of red blood cells and stomach problems lead to a loss of appetite, this causes a dramatic shrinking of the waistline.

Decreased Reasoning Ability

This is more of an obvious problem. If you have vitamin B12 deficiency symptoms, your body produces less amount of red blood cells. 

As a result, your brain doesn't receive a sufficient amount of oxygen that it needs to sustain itself. 

This leads to a decrease in your brain's ability to think and reason. In some cases, this problem can cause even memory loss.

Increased Heart Rate

An increased heart rate is one of the first things that happens when you have a B12 deficiency. 

The heart does so to compensate for the lack of red blood cells in your body. After all, your heart has to ensure that each part of your body is getting sufficient amount of oxygen. 

Especially vital organs like the brain and liver. They need a regular supply of oxygen. This is why the heart beats faster to provide enough oxygen to these organs.

Easy Bruising

One of the other common symptoms of Vitamin B12 deficiency is easy bruising. Your body won't function properly without red blood cells. 

Calcium and vitamin C deficiency can also cause bruising. To know whether or not you have this deficiency, a simple blood test is good enough.

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