can vitamin b12 deficiency be a sign of cancer

Can vitamin b12 deficiency be a sign of cancer? Vitamin b12 is an important vitamin in our body for properly working in the nervous system and preparation of red blood cells. 

Its deficiency can cause serious problems to our health. In this article, we will check the role of vitamin B12 in our body, its benefits, and causes due to its deficiency.

Benefits & Role of vitamin B12:

Vitamin b12 is a water-soluble vitamin and also known as cobalamin. It plays an essential role in keeping our body organs healthy (eyes, bones, blood, mind, etc). 

Vitamin B12 also helps to protect our body from a blood disease known as megaloblastic anemia, in which we feel tired and weak. 

Vitamin B12 also helps in the production of DNA in our genetic cells and makes them healthy. It helps our body in the working of the nervous system and the preparation of red blood cells.

Can Vitamin B12 Deficiency Be A Sign of Cancer?

“Yes” In some cases it can cause stomach cancer because vitamin b12 produces red blood cells in our body and protects from the disease “anemia”.

Anemia is a blood condition in which red blood cells become weak and may cause stomach cancer. 

Its deficiency may also cause neurological, Addison-Biermer’s, hematological, psychiatric disorders, and tongue and oral diseases. 

Symptoms of Vitamin B12 deficiency:

Generally, vitamin B12 deficiency can cause numbness, weak muscles, trouble walking, nausea, fatigue, vision loss, increased heart rate, irritability, Pale skin, and weight loss.

Vitamin b12 sources:

Vitamin b12 is a very important vitamin for our body but our body can’t produce it. We need a diet that has vitamin b12.

You can add eggs, fish, meat, poultry, and dairy products in your daily diet to get vitamin b12.

Daily dose:

Generally, For 18 and older people recommended dose is 2.4 mcg daily. For pregnant women, the recommended dose is 2.6 mcg daily.

According to a survey conducted on 100+ adults in 2013, 500 mcg for 8 weeks (8.9 mcg daily) normalized the level of vitamin b12 in 90% of the participants. So, adults and 50+ age of people can take 8-9 mcg daily.


I hope you will find the answer to the question “Can Vitamin B12 Deficiency Be A Sign of Cancer”.

In some cases, its deficiency can become a cause of stomach cancer, but it may cause other diseases.

The only method of preventing vitamin b12 deficiency is to take a proper diet that has rich vitamins & nutrients.

Also, read How Much Vitamin C Should I Take With MSM?

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