vitamin b12 deficiency

How To Recognize And Fix Vitamin B12 Deficiency

Vitamin B12 is one of the most complex vitamins in the human body. It participates in numerous processes in the human organism, including DNA synthesis, red blood cell formation, and myelin synthesis that allows signals to be transmitted through the nervous system. Thus, vitamin B12 deficiency can hamper the overall human health and cause many medical problems.

Vitamin B12 has a significant anti-cancer effects, and can be a source of energy, not only for the body, but also for the central nervous system. Namely, this vitamin helps maintain the good condition of the nervous system, and improves concentration, memory and balance.

Vitamin B12 is synthesized only by a few types of bacteria, like Lactobacillus reuteri (gut bacteria) and Propionibacterium freudenreichii (a genetic strain of bacteria). But, as we grow older, the ability of our body to synthetize this vitamin, and to absorb it from foods, reduces. Hence, we need to learn how to recognize the symptoms of deficiency and how to fix it.

Symptoms Of Vitamin B12 Deficiency


Dizziness and feeling like you’re going to faint may indicate lack of vitamin B12. If you experience this often, it’s best to visit a doctor to determine the exact cause.

Memory Loss

If you forget things too often, then you may be deficient in vitamin B12. Some people even say that being deficient in this vitamin is a common thing among patients who suffer from Alzheimer’s or other types of dementia.

Cognitive Decline

If you notice a decline in your cognitive thinking and understanding, as well as changes in the way you behave, then you may lack this essential vitamin. Visit your doctor and do a check up to determine the exact cause.


If you notice changes in the way you feel, often crying and being in a bad mood, then it may be depression caused by lack of vitamin B12.

Muscle Weakness

Deficiency of this vitamin may cause muscle weakness and tiredness.

Pale Skin

People who lack this vitamin often lack erythrocytes, and therefore, have a pale skin and dark under eye circles.

Tingling And Numbness In The Extremities

A tingling sensation or numbness in your hands and feet may be due to the nerve damage caused by the vitamin B12 deficiency.

Chronic Fatigue

The lack of this vitamin reduces the number of erythrocytes, and thereby, reduces the amount of oxygen in the blood, leading to chronic fatigue.


Lacking energy and being lethargic is an often side effect of vitamin B12 deficiency.

vitamin b12 deficiency


Vitamin B12 deficiency is very common among hypothyroid patients. Thus, they are often recommended to take supplements and foods rich in this vitamin.


Decreased fertility can sometimes be noticed among women who lack this vitamin. Thus, if you’re having difficulties staying pregnant, you ought to check your levels of vitamin B12.

How To Fix Vitamin B12 Deficiency

We can find this vitamin mostly in foods of animal origin, like red meat, offal, fish, cheese, milk, and eggs. But, some plants have it too, such as cereals, various soy products, and brewer’s yeast. In addition to increasing the intake of foods rich in this vitamin, its proper absorption is also very important. And, this is possible only if our stomach and intestines are completely healthy.

What can interfere with the absorption of vitamin B12 is the Helicobacter pylori bacteria, which can cause mucosal infections and lead to the appearance of ulcers.

If you have a severe deficit of this vitamin, it’s best to consult your doctor for an appropriate treatment with supplements.

Vitamin B12 or folate deficiency anaemia
What to Know
Vitamin B12 deficiency
Vitamin B12 deficiency common in primary hypothyroidism.

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