Vitamin B12 Deficiency Diseases: Know the causes, symptoms, cure and Vitamin B12 rich food for prevention

Vitamin B12 is also considered an important source of nutrition that helps our body to make proper DNA and red blood cells. Let us know the causes, symptoms, and cure of vitamin b12 deficiency diseases and we will also get to know the top sources of vitamin b12 to recover from its deficiency. See the full article for more details.

Mar 30, 2024 - 11:57
Mar 30, 2024 - 12:02
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Vitamin B12 Deficiency Diseases: Know the causes, symptoms, cure and Vitamin B12 rich food for prevention
Vitamin b12 deficiency diseases

Vitamin B12 Deficiency Diseases: What is a Vitamin B12 deficiency Anemia?

Vitamin B12 is one of the most important sources of nutrition that our body requires the most as it helps our body to make DNA genetics as well as new red blood cells. It's a fact that our bodies don't produce vitamin b12 but we have to make sure to get it from our diet, as vitamin b12 is stored in our liver and if do not take enough amount of vit-b12 its deficiency can cause various types of problems in our bodies. Vitamin b12 is found in animal products such as dairy products, eggs, and some meat as well.

vitamin b12 deficiency diseases

Normally a newborn baby ( age up to 6 months ) needs around 0.4 mcg ( micrograms ) of vitamin b12, and from 6 to 1 year of age need 0.5 mcg, and babies ( 4 to 8 years ) need around 1.2 mcg, kids ( 8 to 13 years ) needs around 1.8 mcg, kids of age ( 13 to 18 ) needs around 2.5 mcg of vit-b12 and if the age is above 18+ than the body requires around 2.6 to 2.8 mcg of Vitamin b12.

What is a Vitamin B12 deficiency anemia?

Well, our body requires vitamin B12 to make new blood cells, and if there is a shortage or deficiency of vitamin b12 in our body then our body stops making new healthy red blood cells which leads to anemia disease. Generally, it's not necessary that if you have a deficiency of b12 then you must have this disease.

Signs and causes of Vitamin B12 deficiency

It is a fact that as our body gets older, the body's ability to absorb vitamin B12 also decreases. Generally, Vitamin B12 deficiency is seen more in those people who have undergone any kind of weight loss surgery or any other type of surgery in which a part of their intestine is removed, which is done due to their heavy drinking. Vitamin B12 deficiency is common in such cases. Normally Adults between the ages of 25 to 39 the percentage of this deficiency is around 3% only.


Some Signs of Vitamin B12 deficiency are:

  • Risk of developing conditions affecting the small intestine, such as Crohn's disease, bacterial growth, and parasitic infections.
  • Thinning and thickening of the stomach lining is also called atrophic gastritis.
  • Pernicious anemia is caused by a disease that prevents our body from absorbing vitamin B12.

Causes of Vitamin B12 Deficiency Diseases:

  • Pernicious Anemia: Pernicious anemia is a disease in which our body's immune system attacks the cells inside our stomach, the cells with the help of which intrinsic factor is formed. Intrinsic factor is a substance that absorbs vitamin B12 in our body. When these cells are attacked, the intrinsic fat substance is not produced and our body is not able to fully absorb vitamin B12.
  • Diet: Vitamin B12 is found mainly in animal food products such as eggs, meat, and dairy products (milk, butter, yogurt, etc.). So, it is common for people who do not consume all these food products to have this deficiency.
  • Gastric Surgeries: Sometimes people have intestinal surgeries, in such a situation, if any part of their stomach or intestine is removed, then the intrinsic factor of their body gets affected due to which the body does not absorb the B12 vitamin properly. And there is a deficiency of Vitamin B12.

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What are the Symptoms of Vitamin B12 deficiency?

Symptoms caused by Vitamin B12 deficiency can be observed in many cases. Some of them are as follows.

  • Pale skin
  • Sudden weight loss
  • Being tired
  • No hunger
  • Shortness of breathing
  • Dizziness
  • Feeling numbness in the hands and fetus sometimes
  • Weakness in muscles
  • Mental depression
  • Increase in heartbeat and heart rate

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Vitamin B12 deficiency cure and Vitamin B12 rich Food list: 

We can avoid vitamin B12 deficiency diseases if we include good nutrients and proper B12-rich foods in our diet, whose names are as follows.

  • eggs
  • Milk, Cheese, and Yogurts
  • cereals
  • meat, chicken, fish
  • broccoli
  • spinach
  • lima beans
  • Grain products like bread, pasta, rice
  • Mushrooms
  • Peanuts
  • Oranges, Lemons, Bananas, Strawberries and Melons

Disclaimer: We are not medical science experts, and the information that has been stated in this article is taken from web sources, so before following any of this advice please consult your doctor first. 


In this article, we learned how we can avoid Vitamin B12 deficiency and what are its symptoms. We also learned what kinds of dangers are caused by Vitamin B12 deficiency. The causes, symptoms, and cure of Vitamin B12 have also been discussed in detail. We hope that you have got proper information from this article.

Frequently Asked Questions 

What happens when your vitamin B12 is low?
So when Vitamin b12 is low in our body we will feel, tiredness, dizziness, depression, anxiety, increase in heartbeat, and sometimes diseases such as pernicious anemia and Crohn's disease can also be found in our body.
What are the warning signs of vitamin B12 deficiency?
Some of the warning signs that we can feel while suffering from a deficiency of vitamin b12 are:
having pale skin, shortness of breath, weight loss, fatigue, numbness in hands and feet, etc.

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