Vitamin B12, also known as cobalamin, is an essential vitamin that our body needs to function properly. It plays a crucial role in the formation of red blood cells, as well as in the maintenance of our nervous system.

In this article, we will discuss how much vitamin B12 is needed by the body and what it does to ensure our well-being.

What is Vitamin B12?

Vitamin B12 is a water-soluble vitamin that is naturally found in animal products such as meat, fish, eggs, and milk. It is essential for the proper functioning of our nervous system and the formation of red blood cells.

Our body does not naturally produce vitamin B12, which is why we need to obtain it from external sources. This can be done through a variety of sources, including supplements or fortified foods.

How Much Vitamin B12 is Needed by the Body?

The recommended daily intake of vitamin B12 varies depending on age and other factors. According to the National Institutes of Health (NIH), the recommended daily intake for adults is 2.4 micrograms per day.

However, the amount of vitamin B12 needed by the body may differ in certain situations. For example, pregnant women or individuals with certain medical conditions may require higher levels of vitamin B12.

The Role of Vitamin B12 in Our Body

Vitamin B12 plays a crucial role in maintaining the health of our nervous system. It helps in the formation of myelin, a protective coating that surrounds our nerve fibers, which ensures that our nerves function properly.

Aside from that, vitamin B12 is essential for the formation of red blood cells, which are responsible for carrying oxygen throughout our body. Without vitamin B12, our body will not have enough red blood cells, which can result in anemia.

Vitamin B12 is also involved in the metabolism of our cells. It helps in the breakdown of fatty acids and amino acids, which are essential for our body to function properly.

Symptoms of Vitamin B12 Deficiency

A vitamin B12 deficiency can result in a number of symptoms, including fatigue, weakness, and anemia. It can also cause neurological symptoms, such as numbness and tingling in the hands and feet, difficulty walking, and memory loss.

Some individuals who are at risk for a vitamin B12 deficiency include elderly individuals, vegetarians, and individuals with certain medical conditions that prevent the absorption of vitamin B12.

Sources of Vitamin B12

The best sources of vitamin B12 are animal products such as meat, fish, eggs, and milk.

However, for individuals who do not consume animal products, there are still a number of food sources that are fortified with vitamin B12, such as fortified cereals, soy products, and nutritional yeast.

Supplements are also available in the form of capsules, tablets, and injections.

The Bottom Line

Vitamin B12 is essential for the proper functioning of our nervous system and the formation of red blood cells. The recommended daily intake for adults is 2.4 micrograms per day.

Symptoms of a vitamin B12 deficiency include fatigue, weakness, anemia, and neurological symptoms. Animal products such as meat, fish, eggs, and milk are the best sources of vitamin B12. Individuals who do not consume animal products can obtain vitamin B12 from fortified foods, supplements, or injections.