Vitamin B12 In Nutrition: Sources, Benefits, And Deficiency Symptoms

Time for reading: ~0 minutes Last Updated: August 14, 2025


Discover the importance of vitamin B12 in nutrition, its sources, benefits, deficiency symptoms, and recommended daily intake.

The Importance of Vitamin B12 in Nutrition

Vitamin B12, also known as cobalamin, plays a crucial role in maintaining the health of nerve cells and aiding in the production of DNA. It is essential for the formation of red blood cells and proper brain function.

Sources of Vitamin B12

Vitamin B12 is primarily found in animal products such as meat, fish, eggs, and dairy. For vegetarians and vegans, fortified foods or supplements are recommended to meet their daily requirements.

Benefits of Vitamin B12

Ensuring an adequate intake of vitamin B12 can prevent anemia, support energy levels, and promote healthy nerve function. It is also essential for maintaining a healthy metabolism.

Deficiency Symptoms

A deficiency in vitamin B12 can lead to fatigue, weakness, neurological problems, and anemia. It is important to monitor your intake and consult a healthcare provider if you suspect a deficiency.

The recommended daily intake of vitamin B12 for adults is 2.4 micrograms. However, individual needs may vary based on age, gender, and health conditions.

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