We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.
Fitness

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What are the Benefits of Vitamin B12?

By Emma Lloyd
Updated: May 17, 2024
Views: 3,466
Share

Vitamin B12 is essential for good health. Some of the potential benefits of vitamin B12 include improved blood pressure, cholesterol levels and cardiovascular health; reduced stress; and healthier skin and fingernails. Vitamin B12 also is important for maintaining a healthy immune system and central nervous system. It is required by the body for a number of metabolic processes, one of the most important of which is the rapid DNA synthesis that occurs during cell division. This vitamin therefore is particularly important in maintaining healthy red blood cells and white blood cells, because these cell types divide rapidly.

In addition to the known health benefits of vitamin B12, there are many health benefits that are suspected, rather than conclusively proven. For example, vitamin B12 deficiency has been linked to an increased risk of Alzheimer’s disease and cardiovascular disease, or a worsening of the symptoms of these diseases. This link has been theorized because of studies that have noted that many people with these diseases are deficient in vitamin B12. Ensuring an adequate intake of vitamin B12 might therefore help reduce the risk of these diseases occurring or might reduce the severity of symptoms.

These unproven benefits of vitamin B12 have been linked to the relationship between B12 and an amino acid called homocysteine. An increased blood level of homocysteine is a known risk factor for cardiovascular disease, and vitamin B12 plays an essential role in homocysteine metabolism. When vitamin B12 is deficient, homocysteine levels increase because metabolism of this amino acid is reduced. It is believed that a similar mechanism might be responsible for the link between Alzheimer’s disease and vitamin B12 deficiency.

There are many health benefits of vitamin B12, but there also are potentially serious consequences that can result from a deficiency in this essential vitamin. A deficiency in vitamin B12 can lead to a condition called megaloblastic anemia, in which red blood cells are of abnormal size and are dysfunctional. This leads to fatigue, weakness, breathing difficulty and reduced concentration. Other symptoms of vitamin B12 deficiency can include muscle weakness and spasticity, incontinence, low blood pressure, vision disturbances, mood changes and even psychosis.

The benefits of vitamin B12 can be gained by ensuring that this vitamin is consumed regularly as part of a balanced diet. The richest sources of vitamin B12 are meat, dairy products and eggs. Some plants do contain stores of this vitamin, but it is not in a form that can be used by the human body. People who follow a vegan diet, which entirely excludes animal products, often find it difficult to gain an adequate supply of vitamin B12. They must therefore increase their intake by consuming fortified foods or supplements.

Share
WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Editors' Picks

Discussion Comments
Share
https://www.wisegeek.net/what-are-the-benefits-of-vitamin-b12.htm
Copy this link
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.