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Do not ignore Vitamin B12 deficiency, it can harm the body!
Samira Vishwas | April 17, 2026 4:24 PM CST

Health Desk. Vitamin B12 is an essential nutrient for the body, which plays an important role in the brain, nerves and blood formation. If its deficiency is not understood in time, it can cause many serious health problems. Let us know its 6 main effects.

1. Increased weakness and fatigue

Deficiency of Vitamin B12 reduces the production of red blood cells in the body, which leads to lack of oxygen. This results in constant fatigue, weakness and lethargy.

2. Effect on memory and brain

B12 deficiency directly affects brain function. This can cause conditions like forgetfulness, difficulty concentrating and mental confusion.

3. Tingling and pain in the nerves

Deficiency of this vitamin can weaken the nervous system, causing tingling, numbness and pain in hands and feet.

4. Anemia

Vitamin B12 deficiency can cause megaloblastic anemia, in which the body produces fewer healthy red blood cells, leading to common symptoms such as shortness of breath and dizziness.

5. Impact on mental health

Prolonged B12 deficiency can also cause mental problems like depression, irritability and mood swings.

6. Weakness of bones and body

Due to its deficiency, bones can also become weak and the body’s energy decreases, making it difficult to perform daily tasks.


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